A remake of "The Man in Half Moon Street" (1944) (qv.). Dr. Bonner plans to live forever through periodic gland transplants from younger, healthier human victims. Bonner looks about 40; he's really 104 years old. But people are starting to get suspicious, and he may not make 200.

A mad scientist captures living victims and kills them for a special tissue that he uses to keep himself living and lokking young forever.