Interviewing Edgar Allan Poe (Montgomery Glenn) in a shadowy London pub, journalist Alan Foster (Georges Rivière) questions the veracity of Poe's macabre tales. Poe bets Foster he can't spend the night of All Soul's Eve in the haunted mansion of Poe's friend Lord Blackwood (Raul H. Newman). Every night in Blackwood Castle, the dead rise and re-live their grisly demise. With the help of a beautiful, sympathetic specter (Barbara Steele), Foster hopes to escape the shadowy castle alive.