Set in 1950s St. Louis, this fact-based drama details the story of a psychologically tormented priest (Timothy Dalton) who's called upon to perform an exorcism on a young boy (Jonathan Malen). Hume: Christopher Plummer. Father McBride: Henry Czerny. Aunt Hanna: Piper Laurie. Mannheim: Michael Rhoades. Phyllis: Shannon Lawson. Halloran: Michael McLachlan.