Elmer Tuttle, a plumber in Paris, is enlisted by beautiful Patricia Alden to help her make her lover Tony Lagorce jealous. Tony, however, is two-timing Patricia with Nina Estrados. Elmer, with the help of his friend Julius, hopes to use the high-society contacts he's made with Patricia to find a market for his new invention, a pistol with a range-finding light. But Elmer's atte......