Passing for crazy and locked up, the CEO of a company escapes from the asylum and claims that he is the captain of a troop of pirates. To the disappointment of the director of the company and in the company of three employees, he accomplishes many extravagances which will be beneficial for his acolytes.

At the end of the 19th century, during a ball in Joinville, on the outskirts of Paris, Georges, a former delinquent working as a carpenter, meets Marie, a young woman connected to a criminal gang.