The best detective in France is on the case... questioning every suspect and turning up the sordid history of a family full of gun-runners, art forgers, jewel thieves, and (at least one) murderer. Can our unlikely duo stumble, sneak, eavesdrop, adopt-a-pet, and literally (almost) cross swords with the premier detective in Paris and solve the murder grisly murder in time to catch their flight home?