Asylum (also known as House of Crazies in subsequent US releases) is a 1972 British anthology horror film made by Amicus Productions. The film was directed by Roy Ward Baker and produced by Milton Subotsky. Robert Bloch wrote the script, adapting four of his own short stories.Baker had considerable experience as a director of horror films, having made Quatermass and the Pit and Scars of Dracula. Bloch had written the novel Psycho, on which the film directed by Alfred Hitchcock was based.

The film was shot in April 1972; it premièred in the UK on 6 July 1972, and in North America on 17 November 1972.