Incubus is a 1982 Canadian supernatural slasher film directed by John Hough and written by George Franklin, based on the 1976 novel of the same name by Ray Russell. It stars John Cassavetes, Kerrie Keane, and John Ireland. The plot focuses on a small Wisconsin town where a mysterious figure is raping and murdering young women. Its title is sometimes extended to The Incubus.

John Benjamin Ireland was a Canadian-American actor and film director. Born in Vancouver, British Columbia and raised in New York City, he came to prominence with film audiences for his supporting roles in several high-profile Western films, including My Darling Clementine (1946), Red River (1948), Vengeance Valley (1951), and Gunfight at the O.K. Corral (1957). He was nominated for an Academy Award for his role as Jack Burden in All the King's Men (1949), making him the first British Columbia-born actor to receive an Oscar nomination.