During the Hundred Days, counterfeit banknotes are in circulation. An alleged counterfeiter is arrested and sentenced to death, despite Vidocq's testimony. And he refuses to escape. Vidocq manages to delay the execution - by having the guillotine “removed” (!) - and joins forces with the Parisian underworld to track down the real forgers. They are the royalists who have replaced the Bank of France's banknote printing press with a fake one. Accompanied by the Baroness, Vidocq sets off for the Vendée to recover the real money board. The Baroness has been asked by Fouché to introduce Vidocq to the Chouan camp. But Vidocq is wary of her: won't she betray him yet again?...