A priest is sent on a mission to unravel the mysteries surrounding the death of a colleague, but as investigations progress, he is drawn into the dangerous world of demonic possession while attempting to save a woman's life. John Boorman's sequel to William Friedkin's controversial horror classic is a bit disappointing, given the high quality of the original. Linda Blair, Richard Burton, Max von Sydow and James Earl Jones star.

Bizarre nightmares plague Regan MacNeil four years after her possession and exorcism. Has the demon returned? And if so, can the combined faith and knowledge of a Vatican investigator and a research specialist free her from its grasp?