S Is For Silence: The team is dispatched to a monastery to investigate the corpse of Father Thomas, whose body has not decayed in the year following his death. (S2, ep 7) [S]
B Is For Brain: Kristen, David and Ben are sent to Cornell University, at the request of Bishop Marx, to investigate an electrode-based experiment. (S2, ep 8) [S]
Justice X 2: Leland tries to get serial killer Orson Leroux's conviction overturned. Kristen is in court when her daughter, Laura, needs emergency heart surgery. (S1, ep 12) [S]
7 Swans A Singin': Kristen, David and Ben are called to investigate an insidiously addictive Christmas song that's spreading among an increasing number of students. (S1, ep 10) [S]
Exorcism Part 2: David is shocked to learn he is being sued for inflicting severe psychological harm on Caroline Hopkins, after he assisted in her exorcism. (S1, ep 9) [S]
2 Fathers: When David recognises one of the sigils in the Poveglia Codex from his father's art, he and Kristen journey to a remote art commune to investigate. (S1, ep 8) [S]
Let X = 9: The Catholic Church asks Kristen, David and Ben to assess the veracity of a prophetess, Grace Ling, and they are shaken when they see one of her visions come to life. (S1, ep 6) [S]
Genesis 1: The Catholic Church hires forensic psychologist Kristen Bouchard to determine whether a serial killer is possessed by a demon or merely a psychopath. (S1, ep 1) [S]