The Green Meanie sets their final plan in motion; Hester makes a bold move to secure her future; Brock performs a dangerous surgery to save Dean Munsch's life.

The Chanels are overwhelmed when their TV idol, Dr. Scarlett Lovin visits the hospital; Hester calls a Green Meanie summit as the killers put their kill plan into effect.

Dean Munsch pitches a risky surgery to Dr. Holt, whose hand begins to express a different personality; Chanel #3 forces Cassidy to undergo a psych test; Ingrid sets a devious plan in motion.

Dean Munsch and Chanel organize a blood drive to solve the shortage at the hospital; Ingrid plans her revenge; Hester finds a way to join the staff; A shocking revelation involving the Green Meanie occurs.

Dean Munsch is forced to go to the authorities, which attracts new patients; Zayday and Chanel #5 visit someone with ties to the hospital; A new patient's arrival causes the staff to go mad.

Hester and a sole survivor of the Halloween massacre are questioned; Chad makes a shocking proposal to Chanel; A patient with an outrageous disorder brings Chanel #3 and Cassidy closer.

Shocking confessions are just the tip of the iceberg when the Red Devil is finally unmasked and the killer is revealed.

Shocking confessions are just the tip of the iceberg when the Red Devil is finally unmasked and the killer is revealed.

The Red Devil has plans to disrupt the holiday the Chanels like the most: Black Friday; Denise gets another job; Pete receives an offer from Chad; a confession is made.

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

Grace learns more about Chanel when they collaborate on researching KKT's past; Dean Munsch becomes a target; a figure from the past makes a shocking return.

A shocking event results in Dean Munsch coming face-to-face with her ex-husband's mistress; the Kappas use a Ouija board in hopes of communicating with the deceased Chanel No. 2 and identifying the killer.

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

Dean Munsch makes an announcement that impacts Chanel's plan to throw a pumpkin-patch party; Pete and Grace search for their friend.

As Halloween approaches, Zayday makes a stunning announcement and 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 turns Hester into her next project; Chanel No. 3 shares a secret; a surprising connection between two students is revealed.

The most popular sorority, Kappa House, is ruled by Chanel Oberlin's iron fist until Dean Cathy Munsch steps in; a devil-clad killer wreaks havoc on campus.

Twenty years after a mysterious death rocks Wallace University, another murder takes place.