Doctor Chaney (Richard Basehart) is a world renowned eye surgeon and an expert in his field, but blames himself for failing to restore his daughter's eyesight after she is blinded in a car crash. So when Dan, his daughter's fiancé, comes for a visit, the doctor has him drugged, rendered unconscious, and removes his eyeballs in preparation for a transplant operation. When the operation fails, Chaney carries on with his experiments, and the list of his victims continues to grow.