1956 - France. A priest is murdered. An evil is spreading. The sequel to the worldwide smash hit follows Sister Irene as she once again comes face-to-face with Valak, the demon nun.

Two paranormal investigators risk their lives to prove the existence of demonic forces in order to exonerate a young man accused of murder.

A social worker dealing with the disappearance of two children fears for her own family after beginning the investigation.