Forensic psychologist Kristen Bouchard is hired by the Catholic Church to determine whether a serial killer is possessed by a demon or merely a psychopath.
Kristen, David and Ben investigate a supposed miracle when a teenage girl comes back to life after being declared dead for almost two hours; Kristen meets with her former boss and runs into Leland Townsend.
After a high-strung theatre producer's behaviour turns from demanding to what is believed to be demonic, Kristen, David and Ben must assess the situation; Kristen discredits her nemesis, Leland Townsend, before he can ruin a 17-year-old boy's life.
Kristen, Ben and David are hired to evaluate Eric, a seemingly psychopathic nine-year-old boy. Eric takes a liking to David, which leaves them hopeful they can curb his violent behaviour; Kristen's daughters lie about a game their grandmother bought.
On Halloween night, Kristen and David are sent to assess an exorcism; Ben goes on his favourite show where he debunks their supernatural finds with fellow unbeliever Vanessa.
Kristen, David and Ben are asked to assess the veracity of a local prophetess, and they are shaken when they see one of her visions come to life; David struggles with jealousy when he sees God speaking with the prophetess.
Katja Herbers
Kristen Bouchard
Mike Colter
David Acosta
Aasif Mandvi
Ben Shakir
Michael Emerson
Leland Townsend
Christine Lahti
Sheryl Luria