While trying to break an "animal game" gambling scheme, Det. Bartolomeu hits his head, and the gamblers convince him that he is one of them. But everytime he hears a whistle, he changes between gambler and policeman.
Director: J.B. Tanko
Screenplay: J.B. Tanko
Producer: Herbert Richers
Director of Photography: Amleto Daissé
Story: Sérgio Porto