A hooded serial killer finds a novel way to murder his victims--he lashes them to death with a whip. The police try to track him down before any more murders occur.
Several employees on a nobleman's estate show up at a former abbey, reputed to be haunted, to search for a hidden treasure. Howver, a mysterious hooded figure begins killing off those who may have figured out where the treasure is hidden.
Scotland Yard must discover why people are being murdered by a monstrous dog at Blackwood Castle.
