Stéphane Petitbourgeois is having trouble with his son-in-law Hubert, who has an extra child every year and is expecting his ninth, making thirteen people in the same apartment. However, a competition promises twenty million to the youngest grandfather of twelve grandchildren. Stéphane begins to encourage Hubert. But Pat became sterile from that day on. Finally, after two years, a child is announced. In fact, triplets were born, and after a few twists and turns, Stéphane became the youngest grandfather of twelve grandchildren.
DIRECTOR
CAST
![](https://image.tmdb.org/t/p/w92/sbIYT2OemZuftEMqL5bz6TD4Dly.jpg)
Jane Sourza
Isabelle Petitbourgeois, la femme
![](https://image.tmdb.org/t/p/w92/8R8WVggSEKxxT4n2HRKHjxHrIQZ.jpg)
Louis de Funès
Célestin Ratier, représentant des industries de l'enfance
![](https://image.tmdb.org/t/p/w92/jfWIGiDPcVR5aM7Ws2IYBYAwUju.jpg)
Jean Carmet
Hubert, le beau-fils
![](https://image.tmdb.org/t/p/w92/1wL9Ahv0Df8xYEweeKyLCHOwdhB.jpg)
Andrée Servilanges
Geneviève, dite Mademoiselle, la nurse
![](https://image.tmdb.org/t/p/w300/90IIqlpZtdRT33XD9bu6LRvXPLi.jpg)
![](https://image.tmdb.org/t/p/w300/rVg0HbhS7JEtcEDSLOQFn1pVGi0.jpg)
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