The bellboy aspires to be a private eye and is reading a book to learn the trade. The 'suspicious' activities of women in the hotel give him a chance to practice his skills. Surprise! They are representatives of a lingerie manufacturer. To investigate further, he poses as a potential buyer, and the women take turns modeling their wares.

At the cabaret "The Green Spider", a stranger shoot the singer. Since the murder happens during a trumpet solo nobody hears the shot.

A foreign pianist who comes to visit Paris is ripped off by a young man and his sister. But he soon falls in love with this one.

An inventive small-town tailor rises to international success with his daring and unusual designs.