Mohammed Choukroune aka Ventura, member of the French special services, and Prudent Poirier, unbalanced Lieutenant Metropolitan Police are forced to team up to find out who killed the godfather of organized Guido Carboni crime day. Using unwittingly, Poirier as bait Choukroune's investigation, dating back some tracks and risking his life several times, mainly because of the nonsense that continually commits his Quebec colleague. Despite their ethnic and moral differences and diametrically opposed to work, the two men joined their forces to capture the culprits and foil their plot.