A stranger named Constant disrupts the life of Flora, who is seemingly happy with her husband Lucien. But she suddenly experiences a passionate love, taking refuge with Constant in a cave they call “home under the sea.”
| Directing | Henri Calef | Director |
| Writing | Jacques Companéez | Screenplay |
| Writing | Georges Neveux | Screenplay |
| Writing | Paul Vialar | Novel |
| Camera | Claude Renoir | Director of Photography |
| Editing | Jacques Grassi | Editor |
| Sound | Jean Yatove | Music |