Lino Ventura, Bernard Blier, Francis Blanche, Claude Rich, Pierre Bertin, Robert Dalban, Jean Lefebvre, Horst Frank, Charles Regnier, Mac Ronay, Venantino Venantini, Sabine Sinjen, Jacques Dumesnil, Yves Arcanel, Philippe Castelli
Ex-gangster Fernand (Lino Ventura) receives a call from a dying friend, a mob boss nicknamed "The Mexican". The doomed mobster talks Fernand into taking care of some criminal business and looking after his soon-to-be-married daughter. When a longtime mobster heavy, Volfoni takes exception to Fernand for being an outsider, they come after Fernand who is equal to the task. He defends himself in a series of comical killings from the onslaught of the mob.