Based on the play "The Man in Half Moon Street" by Barré Lyndon, this creepy Hammer horror outing focuses on Dr. Georges Bonnet (Anton Diffring), a mad genius who figures out how to live forever. There's just one catch: He must periodically undergo gland transplants using body parts taken from unwilling victims. Christopher Lee co-stars as a young surgeon who may be the only one who can put an end to Bonnet's demented quest for eternal life. Hazel Court, Arnold Marlé, Delphi Lawrence co-star. 83 min. Widescreen; Soundtrack: English; Subtitles: English. Two-disc set.