While Lana tries to shut down Briarcliff for good, in the present Bloody Face's son continues his father's work.
Jude faces another threat to her life when a new inmate joins Briarcliff. Meanwhile, Grace turns increasingly distracted as her obsession with her alien abductors grows.
When Jude threatens to bring down Briarcliff, Howard takes extreme measures. Meanwhile, Grace gives Kit a message and Thredson receives a visitor.
While Arden concludes his experiments, Howard meets Mary Eunice's inner self and Kit has an unexpected reunion.
Lana receives startling news from Mary Eunice. Meanwhile, Arden sets out to learn what happened to Grace and Monsignor Howard takes on a true believer.
While a killer Santa stalks the sanitarium, Sister Jude battles Satan himself and Arden enters the Death Chute.
While Howard makes a deal with Arden that he may live to regret, a young girl is dropped off at Briarcliff. Meanwhile, the true identity of Bloody Face is revealed.
While Kit learns the real reason that Grace is in Briarcliff, Arden must cope with a patient who claims to be Anne Frank... and can reveal his twisted past.
The staff summon an exorcist to deal with a possessed farm boy, while Sister Jude's dark past is revealed and Lana and Grace plan an escape.
An insane asylum plays host to a deranged serial killer who stalks the borders between insanity and reality.
Morgan invites Arthur and his regiment of soldiers over for an evening's entertainment and an overnight stay. During this time, she sets up a series of intrigues and hoaxes.