Jimmy Rudge, chief of the infamous Gang "Jacks of Spades", kidnaps the Marquis d'Harcier and passes himself off as him. The impostor held large parties at his castle, in order to rob the invited guests. Charley Colms, a quirky private detective, gets hired to unmask the Marquis as a fake.

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