Philippe Jordan is a policeman prone to advancing the cause of justice by any means necessary. On his agenda is a powerful drug cartel working out of Paris and Marseilles, with a drug lord who is essentially inaccessible -- but not immortal.

Chronic serial womanizer Stephane Margelle drops his wife Sophie off at the airport so she can go away for Easter weekend. He immediately picks up beautiful young Julie, who has just had a fight with her married boyfriend. He gets her back to his apartment and is preparing for a sexy weekend, when his wife suddenly returns home. He makes up a bizarre, on-the-spot, spur-of-the-moment story that the gorgeous girl is actually his long-lost daughter. Julie plays along, but this leads to a whole series of increasingly ridiculous lies and comical situations (such as when her real mother shows up).

In Paris , Commissioner Stan Jalard and Inspector Simon Lecache plan to quit the police to go and enjoy a more peaceful life in the West Indies. In a nightclub, during a routine visit, they spot Schneider, a dreaded gangster and public enemy. At the time of his arrest, Simon is killed at close range by the criminal. Stan then decides to stay in the police to avenge Simon. Being the godfather of Christian, Simon's son, who sometimes lives in a boarding school, sometimes at home, he takes charge of his education. Two years later, Stan has been promoted, and he's told that Schneider had resurfaced in the capital. A long hunt begins.