Lucifer suspects his mother may be involved in a ghastly murder for which she claims she's innocent.

Lucifer and Chloe investigate a gruesome murder after a video of the crime surfaces on social media. When a second video appears, they realize they have a serial killer on their hands.

Lucifer's brother Uriel shows up as he investigates the murder of his favorite action hero.

Guilty and self-destructive, Lucifer clashes with Chloe during an investigation, leading her to team up with Dan instead. Meanwhile, Amenadiel bonds with Charlotte, and Maze takes Trixie trick-or-treating.

After the man convicted of killing Chloe's father is murdered, new clues suggests he was framed; Maze looks for a job; Lucifer tries to learn how to be normal by watching Dan.

Lucifer seeks Azrael's blade when he discovers it's been used in a string of violent stabbings linked to a local yoga studio.

Lucifer goes to great lengths to protect his home when the owner is murdered and the new owner wants it demolished.

Charlotte is determined to get Lucifer to leave Earth by turning Chloe against him. Meanwhile, Amenadiel has begun working as Charlotte's soldier, which makes Maze question his loyalty.

The tension between Lucifer and Chloe makes it difficult for them to investigate the murder of two victims who happen to be Lucifer's old flames.

Lucifer and Chloe investigate a mysterious masked killer who is poisoning college students. They also try to make sense of their new relationship, after a long-awaited kiss. Meanwhile, Charlotte visits Linda for advice on a touchy subject.

Lucifer returns to hell to find an antidote for Chloe and his mother goes to hell to bring him back.

Lucifer attempts to control his emotions when he learns the flaming sword is the only way the family can return home. In the meantime, a therapist and head of admissions at a prestigious private school is found dead.

When a grisly murder takes place at an insane asylum, the prime suspect calls himself God. Lucifer, unsure this may be his father, tries to find the real killer.

Charlotte helps Lucifer and Chloe find out who killed the man who had the last piece of the Flaming Sword.