Gaby is happy. After eighteen years of work, he is a flourishing mechanist. But one day, the mechanic of his life is out of order. He discovers that his assistant is in love with his wife. This one runs away with her daughter in law. So, Gaby's friends imagine a gambit to find them, at the moment where father and son enjoy pleasures of single life.
| Directing | Jan Saint-Hamont | Director |
| Writing | Robert Castel | Writer |
| Writing | Alain Le Henry | Writer |
| Camera | Maurice Fellous | Director of Photography |