Hello Mary Lou: Prom Night II is a 1987 Canadian supernatural slasher film directed by Bruce Pittman, and starring Michael Ironside, Wendy Lyon, Louis Ferreira and Lisa Schrage. It follows a high school student who becomes possessed by Mary Lou Maloney, a student who died at her high school prom in 1957. A sequel to the slasher film Prom Night (1980), it was originally intended to be a standalone film titled The Haunting of Hamilton High, but was refitted and retitled in order to capitalize on t