Childhood's End (2015)
S01E23 True Believer
Episode Overview
Detective Frank Sheen, a skeptic of the supernatural, is called to look into the mysterious suicide of a priest. During his investigation, he speaks with Father Dowling, who claims that the convent is under demonic influence. Unaware of the convent's dark past, which includes the suicide of Sister Theresa that led to its closure, Frank spends a night there and starts experiencing troubling thoughts of suicide himself.