Irish singer Sinéad O'Connor asks Dr. Phil for help placing her in a long-term facility and for a platform to tell her story to destigmatize mental illness.

A college student's father and stepmother accuse her boyfriend of emotionally and verbally abusing her and blame him for her suicide.

Sixteen-year-old dropout Brittney spends her days hanging out, drinking and smoking marijuana, while working on her career as a YouTube star.

Family members say "raging alcoholic" Lisa terrorizes her elderly parents; stealing her 90-year-old father's cancer medication, and assaulting him.

Linda believes that her sister, a retiree, is being catfished by a guy who claims he is in Cairo, Egypt, and instantly started asking her for money.

Debbie, who lost 300 pounds in two years, has low self-esteem and a controlling, jealous fiancé.

Drug-addicted mom Carrie admits that she drives her daughter while under the influence and has used heroin in her daughter's school bathroom.

Bill and Jen say their 16- and 18-year-old daughters make their lives a living hell with violent outbursts, joyriding, taking drugs, drinking, shoplifting and calling police to make false accusations of domestic abuse.

Emotions and tempers run high, as Bill and Jen have to make a difficult decision about their violent teen daughters' futures.

Bekah says she removed her mother from her children's lives because she is mentally unstable, sinful, and she even discharged a firearm in her own home.

Shaela's parents say she has exhibited some very strange behavior, after eating a hamburger and getting a mysterious illness, and she has lost her job, house and family.

Three brothers say their mother abandoned them as children, leaving them to float from home to home for most of their young lives, while she moved away and started a new family.

Susan says her son has been arrested 15 times and that she spent over $100,000 bailing him out; Raquel becomes fed up with her brother and mother's behavior.

Ana Estevez talks about the death of her son, Piqui, and shares her thoughts about his father, who confessed to murdering him.

Margaret's husband demands that she choose between him and her afflicted 22-old-year son, Tommy; Tommy's biological father says his son is disturbed and unhappy.

Actress Jan Broberg claims that she was abducted twice, when she was 12 and 14 years old, by close family friend, Robert Berchtold.

Dr. Phil speaks to survivors of the deadliest mass shooting in modern American history.

Susan claims her son is a lazy, unemployed, violent moocher who refuses to support himself or his 4-month-old son.

Dakota claims to be a rebel who has no respect for authority; her mother, Cydney, claims she cannot control Dakota and has given up disciplining her.

Stacey and Dan claim their 18-year-old daughter, Taylor, verbally, mentally and physically abuses their entire family; Taylor says it's actually her parents who are abusive.

Angie and Hunter say they have given up on forcing their son to go to school; the teen only wants to play music and video games, and he won't follow any rules, according to his family.

Sherry claims she is absolutely terrified of her 8-year-old "genius" son and his violent outbursts; she blames her son's behavior on his father, Todd.

David says his young-adult daughter has violent rages, refuses to take her medication, uses illegal drugs and regularly drives drunk.

A 21-year-old woman's family may be to blame for her violent, drunken behavior, and something deeper may be going on with her.

Amanda says her ex-husband's mother is a vindictive, manipulative liar; the mother-in-law says Amanda has anger problems, has threatened to set the house on fire and punched her in the head five times.

When Malia was 15, she became involved with a 35-year-old man, who is now in danger of going to prison; her parents say they fear that if they can't get through to her, she will end up dead.

Jessie says that her stepmother attacked her and her baby, and that her father fears her.

Bree says a young mother dating her father manipulates him and schemes to get her hands on his millions.

Dennis says a woman, he met on a dating website, told him a tale of woe and convinced him to spend more than $200,000 to help her.

YouTube star Trisha deals with her family's disapproval and her "haters", who she says seek to ruin her life by stalking and assaulting her.

Wife and mother Trisha livestreams her entire life; detractors say she live-streams others' personal information, makes negative comments about their appearance and even claims they are convicts; Trisha storms off and collapses.

Jessica and Amber say their ex-stepfather sexually abused them, when they were young girls, and he was convicted and made to register as a sex offender; he maintains his innocence and says their mother brainwashed them into lying.

Steve denies molesting his three stepdaughters and agrees to take a polygraph test; his biological daughter reveals a secret she claims she has been carrying for years.

A dominatrix allows her 14-year-old daughter to skip school, smoke marijuana, drink, and be involved in a polygamous relationship, and they want the girl's straight-laced father to open his mind and accept their lifestyle.

Teen Gabrielle's grandmother says she has spiraled out of control, due to her dominatrix mother's negative influence.

Courtney says her former friend, Amie, has lied about being pregnant three times and losing five babies in total; Amie says she is disgusted by Courtney's false and hateful accusations.

Courtney and Amie come face to face, for the first time in two years, and Amie tries to prove she is telling the truth about losing five babies.

Twenty-eight-year-old DJ's parents and sister Moniece Slaughter (Love & Hip Hop: Hollywood (2014)) say they are concerned for his mental health and fear he poses a serious danger to himself and others.

Michelle, 14, has run away from home numerous times because her parents do not trust her like an adult; her 18-year-old boyfriend says her parents should get used to having him around.

Young teen Michelle's father and boyfriend discuss an altercation that got so heated, her father says he was ready to end her boyfriend's life; the explosive drama continues backstage.

Brandi has not seen her ex-husband or her 11-year-old son, since she was arrested for assault and child endangerment, and her ex says she is an out-of-control alcoholic.

Sarah says she is madly in love with a man she has never met, and she plans to abandon her husband and children and move to Africa to be with him; Dr. Phil sends a team to Kenya to investigate and reveals what the team discovers.

Christina, who walked away from her family when her daughter was 13, says her ex let the girl get away with anything and has turned her into a raging, angry monster with low self-esteem.

John claims that evil forces possess his 12-year-old son, Jack, which instruct the boy to kill his family; John's ex-wife, Jen, refuses to allow their son to go through an exorcism;

A severe case of Munchausen syndrome by proxy leads to murder: Gypsy Rose Blanchard decides that killing her own mother is the only way to escape years of abuse.

Sue and Mike accuse their son-in-law of being a verbally abusive liar, trying to turn their daughter against her own family; formerly pregnant heroin addict Kaitlin returns to the show, asking for a second chance.

A young woman says she hates her appearance so much that she rarely leave her house, and allows cameras to capture her extreme daily rituals that she keeps secret from everyone.

British model Chloe Ayling claims she was lured to a modeling shoot, where she was abducted by masked men, drugged, restrained and held for six days, but some are doubting her story.

Teen troublemaker Sierra has run away from home on a spiritual journey to "find herself" and faces her mother for the first time in more than a month.

Jessica has convinced herself that she's going blind and admits that taking care of her kids is no longer her priority.

Jerica says she has eight to 10 alternative personalities, or "programs", that exist within her and protect her from bad things.

Members of a secret Facebook group accuse a woman named Suzie of conning them out of money, furniture, horses, and in business, killing two horses, damaging their property and hacking their phones, but they don't have any proof.

Hollywood actress and model, Teri Copley, says she's worried for the safety of her daughter, Ashley, and her 3-year-old granddaughter, claiming her daughter's boyfriend, Hector, is physically abusive and the family is homeless.

An 18-year-old Little Rock native vanishes without a trace.

Nicole, 27, admits that she is an alcoholic and a danger to herself and others. but says she drinks because she hates looking in the mirror and to help her escape from reality.

A suburban family say their teen daughter's criminal behavior is so out of control that they have kicked her out of their home and changed the locks to stop her from stealing.

Teens Liberty German and Abigail Williams go hiking in the woods of their small hometown in Indiana and are brutally murdered; in their final moments, the best friends may have recorded images and audio of their killer.

Billy, 20, says the hip-hop world would benefit from his presence, refuses to work and rages when his parents don't give him money; Hanson performs.

Janis spends her retirement savings on her socialite daughter's drug rehabilitation and says the young woman is still making life miserable for the entire family; AnnaRose King (Good Enough (2016)).

Chase, 19, dropped out of college after smoking marijuana, which, he says, caused him to have mental problems; his parents say he has terrorized the family, ever since he moved back home.

Sherri says she was shocked to receive a letter in the mail 16 years ago from Sarah, a little girl who claimed they were sisters and shared the same father; DNA unlocks the mystery.

A woman's relationship with her ex-fiancé proves nearly fatal, when he viciously attacks her; the woman's daughter saves her life.

A woman claims her 35-year-old son has been verbally abusing her, ever since she called 911 on him seven years ago, which led to him receiving a misdemeanor conviction for domestic battery.

Tatiana has left Jehovah's Witnesses and wants her husband to leave, too; CPS has put their children in foster care, over what the parents say is a misunderstanding, and they are fighting to get them back.

Amanda says her father wrote a suspicious note six hours before his sudden death, and she is convinced he was murdered; her mother and brother say she is so obsessed that she has given up on her own life.

Parents say their 18-year-old daughter's behavior is out of control; she says they have labeled her with a severe mental illness and blamed her for their family being dysfunctional.

Tina says her 11-year-old daughter looks like a sweet, innocent girl, but has started fires in the house, killed a cat, and tried to smother her baby brother.

Carrie is accused of being an uninvolved mother and constantly drunk, and separates from her formerly well-paid husband to move back in with her parents.

Sandra, 15, has been arrested more than 50 times, smokes, drinks, has dropped out of school and steals high-priced items; her parents are at odds over how to parent her, and she blames her father for disciplining her;

Dr. Phil presents the recovery stories of some of the nearly 500 past guests he has been able to help with inpatient treatment for substance abuse.

Melissa says her husband refuses to get a job, dresses like a "demonic clown" and spends all day composing and posting "vile" music about killing people; members of Insane Clown Posse say what they think of his music.

Spiritual teacher and former rabbi Marc Gafni, accused of sex abuse and harassment, sits down with Dr. Phil to tell why he says he has been the target of a smear campaign.

Kristine accuses her vindictive daughter of being a neglectful mother to her three young children and having a mental illness because she claims that she can see fairies and calls herself a reincarnation of Pocahontas.

Dr. Phil follows up with past guests, including two sons whose parents said they made their lives a living hell; a woman whose daughter called her a raging alcoholic; and a woman who struggled with her weight.

Darlene calls support-group leader Melinda a lying, mentally unstable bully who scammed innocent victims of the 2016 Tennessee wildfires.

Kelly says that her daughter, Danielle, suddenly changed from a vibrant young woman to a health-obsessed hypochondriac and a hoarder.

Aja says she is sick and tired of taking care of her ungrateful, entitled, drug-addicted mother, who neglected her and her sister while they were growing up.

Police say parents starved, chained up and abused 13 children; family, neighbors, and childhood friends speak out; kidnap survivor Michelle Knight sends a message to the children.

Police have been called more than 100 times because divorced parents Marty and Marla accuse each other of breaching their parenting agreement; Marla accuses Marty's new wife of abducting and poisoning the former couple's 10-year-old child.

Five Michigan teens have been charged as adults with second-degree murder, after being accused of throwing rocks off a highway overpass, killing a father of four; in an exclusive interview, the father of one of the boys speaks out.

Bailey, 21, returns to the show to tell Dr. Phil that she wants to meet the object of her obsession for the first time, because she has something important to tell her.

Crystal accuses her ex-boyfriend of sexually assaulting their 3-year-old daughter; he says she is crazy and a liar, and that she and her mother coached the child into making horrific claims.

Dr. Phil continues his conversation with Crystal, who accuses her ex-boyfriend of sexually assaulting their 3-year-old daughter at least twice in 2016; Crystal's mother, Barbara, joins the conversation and says she believes her daughter.

Karla has lost custody of two of her children and is blowing through her retirement fund to please her online "husband", who she thinks is film industry legend Tyler Perry.

Kourtney and Kelly continue trying to convince their mother, Karla, that she's not Mrs. Tyler Perry, but the victim of an online scammer.

Courtney admits that she has a history of lying, and when accused of stealing valuables, insists she has been pregnant three times and has a mental illness;

Dennis' daughter accuses him of being a master manipulator, his wife gets tired of his womanizing, his mistress wants to marry him, and his long-lost daughter, the product of an affair, needs closure;

Kaley finds her dad, Dennis, on Facebook and has great expectations of meeting the father she always wanted, but she says meeting him turned into one big disappointment;

Sheila says that before her boyfriend left, he programmed and bugged the radio stations in her car and her iPod so he could send her messages and clues as to his whereabouts via song titles and lyrics;

Whitney says she has uncovered her husband's double life of nasty lies and infidelities, and she is heartbroken because there is no way to fix her relationship with him;

Dr. Phil speaks to students, who were inside Marjory Stoneman Douglas High School during the school shooting; what two Columbine High School shooting survivors have to say to Parkland survivors.

Assistant church pastors Jason and Brooke, who have adopted seven special-needs children, say their faith was tested after they took in a homeless former addict, who began accusing them of child neglect and sexual abuse.

Ryann claims that her sister, Stephanie, is unstable and that her delusional and paranoid behavior is ruining her life and causing her to be a danger to herself and her children.

Kim says her father sexually abused her, from the age of 7 to 14; he says they had a "consensual sexual relationship".

Karla says she is terrified for her daughter, Abby, who she claims is dealing with debilitating episodes of PTSD from being possessed by demons for over a decade; Abby has an episode on stage;

Dr. Phil speaks with a woman, who only weighs 90 pounds, because she is afraid of food; previous guest Sexy Vegan is back on the show.

Sam, a former U.S. Secret Service Agent, says her husband is destroying their marriage and tearing apart their family with his rage, constantly spewing his anger at their 10-year-old son.

Siblings claim their mother, Nikki, has neglected them and jumped from guy to guy, since their parents' divorce, and has chosen her new boyfriend over them because he has status and wealth.

Jon Taffer (Bar Rescue (2011)) offers advice to Karen and Jim and their abusive, overly dependent son, Kyle, who gives many excuses why he cannot move out of their home.

Actor Terry Crews ("Brooklyn Nine-Nine") and his wife, Rebecca Crews; Nicole says her children's father put a tracking device on her phone and hired a private investigator to follow her because he thinks she is being "unfaithful";

Alma says her daughter has been on a downward spiral, since puberty, and has ruined Alma's life and relationships;

Singer Demi Lovato talks about her past struggles, her sobriety, and her fight to inspire her fans; Dr. Phil and Demi take part in her new project, bringing mental health awareness to people across the country;

Parents claim their middle-aged son is a violent, manipulative liar who refuses to get a job and has stolen more than $100,000 from them; he admits stealing and says he won't stop until he gets what's "rightfully" his;

Jessica moved to Las Vegas, after a man she met online, promised her fame and fortune, but she ended up being sex-trafficked, abused and homeless;

Homeless Jessica faces off with her parents, who say she has a history of not telling the truth and demand a pregnancy test; actress Vivica A. Fox (Empire (2015), book "Every Day I'm Hustling");

Young Anika got great grades and played the violin at Carnegie Hall, but her mother says Anika had disturbing behavior issues and is now a 31-year-old homeless, unfit mother.

Fourteen-year-old Tatum puts herself in dangerous situations by meeting men online and sneaking out of her home; she is currently living in a juvenile detention facility for assaulting her mother.

Three sisters say their mother, Shelly, is a raging alcoholic who abuses them and their father and regularly threatens to kill him; Shelly says she is the real victim;

At age 13, Jodie was considered a prime suspect in her older sister's murder, and has maintained her innocence for 34 years;

Eight years ago, A.J. found his grandmother lying in a pool of blood after a brutal home invasion, and his family members say he is using his PTSD as a crutch to get away with being violent, lazy and always playing the victim;

Engaged parents of a baby girl admit to repeatedly assaulting each other;

Laurie-Ann says her dangerous, narcissist ex-boyfriend and his new fiancée are retaliating against her for breaking her silence and filing charges against him for domestic violence, emotional abuse, theft and fraud.

Splendor and Jeremie fear that their adult daughter is being abused by her current boyfriend; the young woman admits that she needs to work on being a better mother;

After a whirlwind romance and wedding, Holly realizes that her abusive new husband married her only for the millions of dollars she stands to inherit;

Jordan, 23, says she loves the attention she gets from her anorexia; her stepfather says he has spent more than $100,000 trying to save her life but is done;

Jordan, 23, says her eating disorder is her best friend; her parents meet the boyfriend they want out of her life; Cleveland kidnapping survivor Michelle Knight discusses her secret wedding and how she found love;

Jenny's teens say their mother rarely gets out of bed and is always threatening to leave them or to drive her car off a cliff; Jenny reveals a family secret that she has been keeping for 17 years;

Maryann shot the "single, millionaire" boyfriend she met online, when she learned he was a married man cheating with multiple women; they now want to know if Dr. Phil thinks it's a good idea for them to walk down the aisle;

A religious group in a tiny, isolated town is accused of holding one member against her will for years; a man tells of being indoctrinated and drugged and eventually leaving the group and its strict dogma behind;

A wealthy, spoiled teen must go on a special assignment, near Skid Row in Downtown Los Angeles;

Drug-dealer Tricia goes to prison, when one of her customers dies of an overdose; now released, Tricia wants her two daughters' legal guardian to return them to her;

Ever since Shirley kicked her teen daughter, Marie, out of the house, the young woman has been living a dangerous double life; Dr. Phil uncovers the family's dark secrets that may be the keys to unlocking Marie's rebellion;

Mercuree thinks Chrissy Monroe of VH1's "Love and Hip Hop" is cyperstalking, harassing and threatening her;

A jury finds the man, who says he discovered the body of Rebecca Zahau hanging from her millionaire boyfriend's balcony, civilly liable for her death;

Maya began acting out at age 12, when she caught her mom having an affair with "Uncle Craig", her dad's friend; Craig says it's not his fault he had an affair, fell in love, then moved in with his best friend's wife;

McKenzie told her identical twin to stay away from her wedding, saying she is a manipulative drug addict;

Michele says her daughter dropped out of college and she is still supporting her nine years later; the young woman says she must figure out a way to escape the co-dependent, toxic relationship she has with her mother;

Party mom Teresa, 59, has many boyfriends and spends money on clothes instead of bills; her daughter fears her behavior may lead to her death;

Taylor's parents say constant bullying and hacking by online strangers have caused her to fall from being a teen media star to homeless and hopeless, and they believe that her relationship with her boyfriend is dysfunctional;

Kevin Esterly's wife tells about his relationship with the 16-year-old girl, she considered to be a fifth daughter;

Daruta accuses her ex-husband of domestic violence and molesting their children; he denies all accusations and says she brainwashed the kids to believe that he did the unthinkable;

Cindy says her son's fiancée has a very dark past, keeps him trapped in a relationship and may be putting him in danger;

Jilly claims she created a juice that can cure any disease or disorder and could help one live to be 400 years old; two people who have tried the juice say it caused them to have strokes;

Paul fears that his wife's once-innocent "cuddle site" may have become a platform for illicit sexual activity; she says she has not been completely honest with him and is ready to tell all;

Paul's wife, Alaska, says she is ready to tell the truth about what she does with her website's clients; what caused her to become so enraged that she couldn't stop talking about it, even after she left the stage;

Amber learns that her new husband may be a serial killer, when a 911 call from one of his victims leads to his arrest; what police discovered in the house where they arrested him, and what Amber says he told her that left her very afraid;

Lacey says voices she hears, through vents and heaters and in the woods, talks to her all day long; Dr. Dan Siegel (book, "Aware") discusses meditation;

Cole says his mother abandoned and disappointed him throughout his childhood, but she blames his aunt, who raised him; Nancy's 37-year-old daughter is recently divorced, 100 pounds overweight, and unmotivated;

John says he has urges to torture, kill and dismember people, and he admires his former pen pal, serial killer Arthur Shawcross; Shawcross' daughter and first victim's sister try to change John's mind about him;

An update on Courtney and her former friend, Amie, whom she accused of lying about pregnancies and babies' deaths; Dr. Phil meets a teen whose dark, twisted world left her mother heartbroken;

Lena has written to the show more than 30 times, saying Dr. Phil is her only hope of getting her troubled 15-year-old son, Cole, back on track, after being kicked out of several schools and homes; Cole says his parents are the problem;

Gracie, 15, refuses to go to school, is in constant trouble with the law, and posts provocative photos online;

Lace doesn't believe that her mother was acting in self-defense, when she shot Lace's father, forcing him to use a wheelchair for the rest of his life;

Chrysta wants Dr. Phil to help her decide whether to marry her beloved fiancé or to end the relationship because his young son has tried to kill her twice, and her family fears for her life and the lives of her own two children;

Bob says his wife has spent thousands of dollars a day on clothes, purses and cars, but he hasn't stopped her, because he fears she will leave him;