Two children run away from a Swiss boarding school and set out for Paris, with their frantic parents in hot pursuit.

A young man, Lagardère, discovers that a plot is afoot to assassinate the Duke of Nevers. He warns him and flees with his daughter, Aurore. Fifteen years pass. Lagardère has raised Aurore as his own, but her mother seeks her out and has her abducted by her men. With the help of two friends, Lagardère rescues the girl and confronts her kidnappers.

On Christmas night, an ex-convict meets a beautiful, married Italian woman who has a lot of things to hide.