The Monster Maker (1944)

Directed by Sam Newfield. The story revolves around Dr. Igor Markoff, a deranged scientist who creates a serum that disfigures its victims. Markoff uses the serum to transform individuals into hideous, disfigured creatures and demands ransom from their loved ones for the antidote. As the authorities and a medical team race against time to stop Markoff's malevolent experiments, they uncover the doctor's twisted motives and the terrifying consequences of his actions.