Campana, a commissar at the drugs bureau of Paris police gets an undercover job in Nice to catch an Italian-French mafia boss. As he slips into the identity of a gangster's brother, who was already killed, he has to play the role of a loving husband with child - something that is not so easy for a confirmed single like Campana. Unfortunately American killers chase behind the Nice mafia clan too, in order to get control of French drug trades to USA.

Jean-Marie Fayard is a young examining magistrate in a large provincial french city. He belongs to that generation of judges who are endeavoring to re-adapt the notion of justice to our changing times. His methods are not agreeable to every one. Criticism and pressure are brought to bear upon him but he is aware of his value, professionally, and refuses to make any concessions. He follows an unwavering course. He uses dynamic methods and takes uncustomary initiatives. He behaves like a crusader, a battler, whence the nickname given him by the reporters : the sheriff.

A man accused of murder discovers a trail of corruption leading to the powerful family of his former love. Going underground, he seeks allies in a town where trust is scarce.

Smuggler's Ball is the English-language title for this French-Belgian seriocomedy. The action takes place along the borders separating Belgium, Holland and France. It is here that the worldly Pierre (J. P. Kieran) carries on a profitable smuggling operation, all the while romancing Siska (Christian Lenier), the daughter of a local customs official. Various subplots and secondary characters weave in and out as the plotline guides the viewer through the WW II years. Towards the end, the story shifts gears when the Benelux Frontier Agreement eliminates all government regulations. The film's screenplay is by Charles Spaak, himself the descendant of a Belgian political family, and thus well-versed in bureaucracy and red tape.

Darien, a left-wing police informant, is forced to lure his old friend Sadiel to Paris, allegedly to film a television special about the Third World. Sadiel, the exiled leader of a North African state, is being hunted by the ruthless Colonel Kassar, who will stop at nothing to capture his political rival. Once Sadiel arrives in Paris, Darien realizes he has been manipulated. He tries to turn back the clock, not realizing what or who he’s truly dealing with.