An assignment duty nurse goes in search of her live-in boyfriend, a successful photographer, to the Church run psychiatric institute, after he has a psychotic break. With the help of her lover, she receives a temporary assignment at the institute, where she learns that most of its patients aren't psychotic, they're possessed, and that the Church is exorcising as many of them as they can.

"WHERE WILL YOU HIDE WHEN POSSESSION IS A PLAGUE."