Not knowing what to expect, the experienced paranormal investigators,
Ed Warren and
Lorraine Warren, hesitantly travel to 1977 Enfield, London, to shed light on a series of strange events taking place in a small apartment. Summoned by the desperate single mother-of-four, Peggy Hodgson, the pair of supernatural detectives start unravelling the mystery of the sudden change in the personality of Janet, her youngest daughter. Indeed, the poor girl shows disturbing signs of demonic possession, and the Warrens find themselves placed in harm's way. Can they stop the forces of evil?
—Nick Riganas