"The Devil Rides Out" is a 1968 British horror film directed by Terence Fisher. It is based on the novel of the same name by Dennis Wheatley. The story follows a group of friends who become entangled in a dangerous occult ritual led by a sinister figure named Mocata. The film features themes of black magic and the battle between good and evil. It stars Christopher Lee as the heroic character, the Duc de Richleau, who attempts to save his friends from the clutches of dark forces. The film is notable for its atmospheric visuals and suspenseful storytelling.