In Paris in the early 1960s, Ronald is a son of a good family, with a carefree, pleasure-oriented life. He is one of the leading figures in the small world of Saint-Germain-des-Prés. Following a trivial parking incident, he meets Arthur, a young man with a straight face who hurts his pride. It is at this moment that Ambroisine, a beautiful young woman, appears... she will be the instrument of Ronald's revenge.
Ugly, persistent, and (initially) annoying admirer pursues a beautiful actress. At first he is laughed of, especially by his ultra handsome rival, but with his firm insistence, and gradually emerging charm, he seduces the lady, to the total shocked surprise of his rival.
Intersecting lives on an island holiday: A lawyer anxious he caused a youth's death.An engineer suspecting his wife after being teased by pranksters.A young man falling for a nurse.A Frenchman seeing his wife wooed by a local.
Four poor fellows win a luxurious car in a lottery but they have not the money to keep it. Therefore they decide to have it a day each and sell it afterwards. Everyone will spend his own day with the car and get some gratification. Some will get it, others will not. And the fifth poor fellow?