In the wake of their parent's separation, three siblings spend the summer in the south of France with their estranged Grandfather. In less than 24 hours, a clash of generations has occurred between the teenagers and the old man. During this turbulent summer, both generations will be transformed by one another.
| Writing | Roselyne Bosch | Writer |
| Directing | Roselyne Bosch | Director |
| Production | Alain Goldman | Producer |
| Sound | Ludovic Bruni | Original Music Composer |
| Camera | Stéphane Le Parc | Director of Photography |
| Editing | Samuel Danési | Editor |
| Production | Coralie Amédéo | Casting |
| Production | Etienne Beck | Casting |
| Art | Willy Margery | Set Decoration |
| Costume & Make-Up | Mimi Lempicka | Costume Design |
| Costume & Make-Up | Valérie Beaudenuit | Key Makeup Artist |
| Costume & Make-Up | Chloé Van Lierde | Key Makeup Artist |
| Sound | Amaury de Nexon | Sound Mixer |
| Production | Catherine Morisse | Associate Producer |
| Production | Marc Vade | Executive Producer |
| Production | Julien Grossi | Casting |
| Costume & Make-Up | Frédérique Arguello | Key Hair Stylist |
| Costume & Make-Up | Julia Floch-Carbonel | Makeup Artist |
| Costume & Make-Up | Géraldine Lemaire | Assistant Hairstylist |
