This low-budget black and white movie shows off the prodigious directorial talent of Jacques Tourneur, who by this stage had already made the classic “Cat People” (1942) and the haunting “I Walked with a Zombie” (1943). Set in the English countryside, the film begins with the mysterious death of an agitated Professor Harrington (played by Maurice Denham), a psychiatrist who has been investigating paranormal beliefs in some of his patients who practice witchcraft and devil worship.