

Speed Demon is an American horror thriller directed by Jon Keeyes and released on May 31, 2026. The film stars Katie Cassidy, William H. Macy, and John Patrick Jordan. Set almost entirely aboard a high-speed train traveling from Montreal to New York City, the story follows Sister Lucrezia, a nun struggling with her faith, and Father Novak, a seasoned priest, as they confront a demonic force that possesses one of the passengers and threatens to derail the train. Combining supernatural horror with a confined survival setting, the film centers on an exorcism carried out under extreme circumstances.
Father Novak and Sister Lu board a train expecting an ordinary journey. Their trip turns into a nightmare when the demon Asmodeus takes possession of a passenger and begins spreading chaos among those on board. As the train speeds toward disaster, Sister Lu is forced to overcome her crisis of faith and perform her first exorcism. With lives at stake and nowhere to escape, the passengers must fight to survive both the possessed victims and the growing supernatural threat.
Speed Demon is directed by Jon Keeyes from a screenplay by Domenico Salvaggio. The film was produced by Katie Cassidy, Cecil Chambers, and Vanessa Coifman under the banners of Triumphant Pictures, Rainmaker Films, and Complex Corporation. The project uses the confined setting of a runaway train to combine possession horror with a real-time survival scenario, with most of the action taking place aboard the speeding locomotive.
Speed Demon was released in the United States on May 31, 2026, receiving a limited theatrical and simultaneous digital release through Maverick Entertainment. The film is available for purchase and rental on digital platforms, including Apple TV and Fandango at Home in supported regions.