The world is shocked by the appearance of two talking chimpanzees, who arrived mysteriously in a U.S. spacecraft. They become the toast of society; but one man believes them to be a threat to the human race.

Dr. Bill Cortner and his fiancée, Jan Compton, are driving to his lab when they get into a horrible car accident. Compton is decapitated. But Cortner is not fazed by this seemingly insurmountable hurdle. His expertise is in transplants, and he is excited to perform the first head transplant. Keeping Compton’s head alive in his lab, Cortner plans the groundbreaking yet unorthodox surgery. First, however, he needs a body.

Little coastal town is being terrorized by deadly Barracudas.