Pierrot escapes his boring society and travels from Paris to the Mediterranean Sea with Marianne, a girl chased by hit-men from Algeria. They lead an unorthodox life, always on the run.
The Robinards form a family divided into two irreconcilable clans: the Léonce branch and the Sébastien branch. That day, the village of Boissy-sous-Saint-Yon was abuzz with activity: at the cemetery, the grandfather, Sébastien Robinard, was buried. At the same time, Marcel Robinard, a descendant of Léonce, was getting married in church. Not to mention a bicycle race and a parade. All these events collide.
This sex comedy concerns the efforts of Julien to get his timid, "backward" 20-year-old son to take an interest in sex and get married. After a series of adventures with women (arranged by papa), Valentin finally gets married to a woman who appears to be as shy as he is. Things get complicated when his father begins an affair with her.
A Turkish ambassador arrives in Paris to sign an important trade agreement, allowing Turkey to buy a sophisticated new war plane from France. Immediately he is the target of an assassin, and a special agent is assigned to protect him.
This story is set in the 13th century, in Britain, where Lancelot, who was raised by Vivian, the Lady of the Lake, becomes one the Knight of the Round Tables and falls secretly in love with Guinevere, the wife of King Arthur, for whom he wants to accomplish many deeds.