Horns is a 2013 dark fantasy, mystery, comedy, horror, and thriller film directed by Alexandre Aja from a screenplay written by Keith Bunin, based on the 2010 novel of the same name by Joe Hill. It stars Daniel Radcliffe as a young man falsely accused of murdering his girlfriend, who uses his newly discovered paranormal abilities to uncover the real killer. Horns premiered at the 2013 Toronto International Film Festival, and was theatrically released in the United States on October 31, 2014.