Joseph Galloudec seven years, lives in the eighteenth floor of a building in the Paris suburbs, between his mother Julia and her father Jean-Claude, a computer engineer and communist militant. His parents experiencing marital problems and his mother soon to give birth, he left for the summer holidays with his grandparents and three uncles, turbulent triplets. He discovers the castles of the Loire, Brittany and England. Upon his return, he met his sister Elisa, but her parents and tear her mother eventually left the home.

Paris, 1956. Everything is going smoothly for Roger, married to Denise, and Paul, married to Monique, until the day they win a house in a radio contest. The difficulties of living together and the intrusion of their parents-in-law lead to a falling out.

Marc, a motorcycle brigadier, is engaged to the charming Véronique. But his future brother-in-law, the clumsy Roger, leader of a Sunday motorcycle gang, has set his sights on joining the motorcycle police.

1981 film by Jean-Charles Tacchella

1980 film by Yves Boisset