The disfiguring disease of acromegaly-which grotesquely extends the bones and distorts one's facial features-was the gimmick in the PRC horror opus The Monster Maker. J. Carroll Naish stars as Markoff, a mad doctor who has no qualms about experimenting on human beings. Markoff's unwitting victim is famed concert pianist Lawrence (Ralph Morgan), who is injected with the doctor's acromegaly-inducing serum. It is Markoff's intention to extort a great deal of money from Lawrence before providing an antidote-and also to win the hand of Lawrence's pretty daughter Patricia (Wanda McKay).