Regina Torné stars as Marlene, a woman who turns to scientist Dr. Favel (John Carradine) when her husband suffers a heart attack. The mad doctor promises he can save her husband, but only via an experimental treatment, one that has dire side effects for Marlene. She then must take to killing in order to obtain the blood needed to treat the condition the doctor had induced in her. Though bits and pieces work, the whole is sufficiently disjointed that it falls short of success. Also known as Madame Death.
Mildly recommended at best. Otto judiciously thinks this movie is OK, but not great.
Movie 446 for 2021.