In this French comedy, former criminal Fernand Naudin (Lino Ventura) must leave his peaceful existence behind after being contacted by a dying friend, a renowned gangster with some unfinished business. Reluctantly drawn back into the mob world, Naudin inadvertently incurs the wrath of local thugs, including the imposing Raoul Volfoni (Bernard Blier), and must return to his gun-toting, law-breaking ways in order to survive a series of attempts on his life.