Unable to find her runaway son, a woman deceives two of her ex-lovers from her youth, a mild-mannered teacher and a tough journalist, that each is the real father in order to obtain their help.
Coming out from jail, Lucas has decided to change his life and behave like a good citizen. But when he is taken hostage in a bank by a hare-brained robber, no cops can believe he is not part of the action.
Caught by tabloid paparazzi with his mistress Elena, a famous and beautiful fashion model, billionaire Pierre Levasseur tries to avoid a divorce by inventing a preposterous lie. He uses the presence of a passerby in the photo to claim to his wife that it's not him Elena is seeing but the other man, one François Pignon. Pignon is a modest little man who works as a parking valet. To make the story convincing, Elena has to move in with Pignon.
A shaman from the South American rain forest visits France for a public relations campaign. In a hotel's elevator in Paris he meets a French good-for-nothing named Perrin he's fascinated with. He follows Perrin to his flat and although Perrin is not very enthusiastic about so much interest in his person, he lets the shaman spend the night in his flat. After an official meeting on the next day being part of the PR campaign the shaman suffers from a heart attack. Hardly being able to speak and laying in a hospital bed he demands to see Perrin. The latter is not very interested in meeting the shaman again. However it looks like it is to late for animosities as the shaman and Perrin seem to be tied mentally somehow since they've met in the elevator.
Ruby (Jean Reno) has only one thing on his mind: to avenge the death of the woman he loved at the hand of a criminal. Quentin (Gérard Depardieu) has very few things on his feeble mind. He's at once exceedingly friendly and nice and dumb enough for the record books.
The two men's destinies will cross, the tough guy consumed by murder and the feeble who talks to the angels.