Crazy as Hell is a 2002 psychological film that is based on the 1982 novel Satan: His Psychotherapy and Cure by the Unfortunate Dr. Kassler, J.S.P.S. by Jeremy Leven and follows Dr. Ty Adams (Michael Beach), an aggressive and overconfident psychiatrist producing a documentary film about a nearby state-run mental hospital. While treating a new patient (Eriq La Salle, who also directed) who claims to be Satan, Dr. Adams begins to question his own perceptions.

Plot

Psychiatrist Dr. Ty Adams comes to the Sedah State Mental Hospital to film a documentary. While coming across self-assured and overconfident, Adams is secretly haunted by the death of his daughter. He strikes up a friendship with the facility's administrator, Dr. Samuel Delazo, playing an ongoing chess game with him. Adams is intrigued by a patient who claims to be Satan and takes a personal interest in his case.