In 1880s London, Mr. Markheim stabs to death a pawnbroker whose wealth he has long envied. Markheim says he intends take some of the businessman's riches, marry, and become a saintly man. An otherworldly visitor who knows Markheim intimately informs him that he will never change his evil ways and therefore should kill again. br br Directed by Robert Stevensbr Starring Rex Marshall, Robert Emhardt, John Baragreybr br Castbr Rex Marshall as Self - Announcerbr Robert Emhardt as Arnold Sachs br John Baragrey as Charles Kincaidbr Mildred Natwick as Nadia Demarestbr Robert H.