Hughes (Jean-Claude Carriere), a veterinarian, contacts an agency for people who are seeking marriage. Through the agency, he meets and marries Jeanne (Anna Karina), a woman with a large house where he can use the space to care for animals. Later, he turns jealous and suspects his wife has a secret life. She discovers he has followed her and retaliates by giving one of his poisonous snakes to a zoo. Eventually, the two lovers reconcile to combine forces against the animals that may be extraterrestrials who have taken on human form in this fantasy comedy effort. Carriere wrote both the original story and screenplay for the film. ~ Dan Pavlides, Rovi