A trio of seedy gangsters, Gigi, Totor and Jo, manage to snatch a suitcase of diamonds, which they promptly lose. The precious luggage is recovered by Ernest Mamourette, a distracted salesman. The police suspect him of being behind the hold-up and the safe. Gigi reappears under the identity of a certain Countess Olga and expresses her desire to marry Mamourette, who is released from prison, and is drawn into a burglary at the home of the real Countess, who, on the point of committing suicide, is reunited with Ernest, her beloved husband, whom she thought had disappeared.

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.