The Legend of Hell House is a 1973 supernatural horror film directed by John Hough, and starring Pamela Franklin, Roddy McDowall, Clive Revill, and Gayle Hunnicutt. It follows a group of researchers who spend a week in the former home of a sadist and murderer, where previous paranormal investigators were inexplicably killed. Its screenplay was written by American author Richard Matheson, based upon his 1971 novel Hell House.