Dean Munsch declares that Kappa must accept any pledge. Chanel's plan to scare the pledges goes horribly wrong; the Red Devil begins wreaking havoc.

As Chanel hazes the new pledges, the murders continues; Gigi hires security to protect the sisters; Grace learns a dark secret about Kappa house.

Chanel turns Hester into her next project; Chanel #3 shares a secret; A surprising connection between two students is revealed; Chad leads the fraternity into a witch hunt for the Red Devil.

Zayday makes a stunning announcement; Chanel concocts a devious plan; Pete and Grace visit a mysterious woman connected to Kappa's past; Dean Munsch struggles to keep Wallace University open.

Chanel makes a decision in an attempt to protect herself that puts Zayday in a position of power; The Kappa sisters make a shocking discovery during a slumber party.

Dean Munsch comes face-to-face with her ex-husband's mistress; The Chanels use a Ouija board in hopes of communicating with the deceased Chanel #2 and identifying the killer.

Grace enlists Chanel's help to learn more about Kappa's past; Dean Munsch becomes a target; A shocking figure from the past makes a return.

Denise tells a terrifying ghost story; Hester's announcement pushes Chanel to the brink; A familiar face returns; The killer claims another victim.

Chad takes Chanel to his family's home for Thanksgiving, where a surprise guest shows up uninvited; Dinner at Kappa House explodes with accusations of who they think the killer is.

The Red Devil has plans to disrupt Black Friday for the Chanels; Believing Dean Munsch is the killer, the Kappa sisters devise a plan to stop her; A shocking confession is made.

Grace learns shocking details about the remaining Red Devil; Chanel's angry email to her minions goes viral, so she tries to make amends by apologizing to Melanie.

In the final aftermath of the Red Devil killings, the remaining killer isn't finished with the survivors and has something in store for them.