Henri, the Man from Nantes, returns to his country after a successful remain in the United States, where he was working for Liski, the drug dealer. With the fame of being a ruffian preceding him, he establishes himself to the job of understanding why the French operations were not so lucrative - as well as quickly he is master of all links of the organization. He can now get it refined to excellence - or ruin it. Just ... the Cops are following his every step.