Demonic is an American feature film of the horror genre with an emphasis on ghosts, evil spirits, spiritual possession and haunted houses. It was written and directed by Will Canon and co-written by Doug Simon and Max La Bella. It was produced by Dimension Films and premiered in Brazil on February 12th, 2015. It was released for digital download in the United States on October 10th, 2017. The film stars Maria Bello as Doctor Elizabeth Klein and Frank Grillo as Detective Mark Lewis, who work together to investigate the deaths of five youths who perished while attempting to summon ghosts.