Research scientist Dr. Peter Blood (played convincingly insane by Kieron Moore) moves home to his village of Porthcarron, Cornwall after being thrown out of medical school in Vienna for wishing to move from lab animals to ... more »humans. While living with his father, Dr. Robert Blood, he begins dating Nurse Linda Parker (Hazel Court). He also sets up in an abandoned tin mine, using curare on locals to acquire compliant "volunteers" in order to continue his heart transplant experiments. Blood's knowledge of medicine and chemistry allow him to lead the police astray while appearing all along to be helping in the investigation of the disappearances. Hazel Court, of Hammer Films' fame gives an outstanding performance, while supported by other Hammer alumni such as Ian Hunter, Fred Johnson and Kenneth J. Warren. The ending is eerily reminiscent of both Hammer and the horror/tragedy of Frankenstein.« less