This gritty police drama shows us the underbelly of the Parisian drug trade. Lulu is a tough streetwise narcotics cop who, like a Frank Serpico or a Dirty Harry Callahan, doesn't play by the rules or kowtow to his weak and/or corrupt superiors. Lulu thrives in this violent world, where sheer guts can overcome his squad's deficiencies of money and equipment. Despite the ruthless environment that he lives and works in every day, he still manages somehow to maintain his humanity.