The Incredible 2-Headed Transplant
Dr. Roger Girard (Bruce Dern) is a wealthy scientist experimenting with head transplantation. His caretaker has a son named Danny (John Bloom) who is an extremely strong full-grown man, but he has the mind of a child due to brain damage sustained in a mine accident. In an unusual turn of events, Manuel Cass (Albert Cole), a recently escaped mental patient and serial killer, has murdered Dr. Girard's caretaker and is seriously injured himself. Given an unprecedented chance to use human subjects – a mortally wounded psychotic and a disabled man with little chance of surviving on his own, neither of whom he thinks will be missed – Dr. Girard transplants Cass's head onto Danny's body to prove that his techniques can be applied to human beings. The new creature, with one head of a murderer and the other with the mental capacity of an eight-year-old attached to an extremely powerful body, escapes and wreaks havoc, committing multiple murders. After the creature kidnaps Linda Girard (Pat Priest), Dr. Girard and Dr. Anderson (Casey Kasem) pursue it to an abandoned mine. Anderson rescues Linda, but Dr. Girard and the creature die in a mine cave-in.