The Ghoul

Betty inherits an estate on the Yorkshire moors from a mysterious benefactor, Edward Morlant, a dotty dabbler in mysticism who years before had been her mother's paramour. But the will requires Betty to take up residence in the old house, where Morlant's corpse soon appears, walking and talking. Morlant tells her that he is an immortal adept and demands the return of his secret diary. The usual suspects and interlopers converge on the house, and upon Morlant's next appearance his resurrected self is killed anew, unquestionably stabbed through the heart. Morlant is soon perambulating again, as the usual suspects and interlopers begin turning up dead.