To complicate matters further, Mortimer's brother Jonathan (Raymond Massey) arrives with his alcoholic accomplice, plastic surgeon Dr. Herman Einstein (Peter Lorre). Jonathan is a murderer trying to escape the police and find a place to dispose of the corpse of his latest victim, a certain Mr. Spenalzo. Jonathan's face, as altered by Einstein while drunk, looks like Boris Karloff's in his makeup as Frankenstein's monster. This resemblance  is frequently noted, much to Jonathan's annoyance. Jonathan, upon finding out his aunts' secret, decides to bury Spenalzo in the cellar (to which Abby and Martha object vehemently, because their victims were all nice gentlemen while Mr. Spenalzo is a stranger and a "foreigner") and soon declares his intention to kill Mortimer.