Ex-cop, ex-convict, now unlicensed private detective Frank Beriat only takes cases he deems truly worthy. When Camille seeks revenge for her sister, Frank reluctantly takes the job.

1774, shortly before the French Revolution, somewhere between Potsdam and Berlin. Madame de Dumeval, the Duke de Tesis and the Duke de Wand, libertines expelled from the puritanical court of Louis XVI, seek the support of the legendary Duc de Walchen, German seducer and freethinker, lonely in a country where hypocrisy and false virtue reign. Their mission is to export libertinage, a philosophy of enlightenment founded on the rejection of moral boundaries and authorities, but moreover to find a safe place to pursue their errant games, where the quest for pleasure no longer obeys laws other than those dictated by unfulfilled desires.