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.

Credits

Georges LautnerDirector

Michael LonsdaleCommissioner Lucas

Michel ConstantinCommissioner Campana alias Louis Lopez

Mireille DarcChristine alias Françoise

Robert DalbanCommissioner Chauvet, Superintendent in Nice