The holidays at a pension in Touquet (North-Western France) are marred by a series of tragic disappearances.
| Camera | René Gaveau | Director of Photography |
| Writing | Jean-Pierre Ferrière | Novel |
| Writing | Pierre Laroche | Writer |
| Directing | Jacqueline Audry | Director |
| Editing | Marguerite Beaugé | Editor |
| Production | Maggie Gillet | Production Manager |
| Sound | Georges van Parys | Original Music Composer |
| Sound | Jacques Loussier | Original Music Composer |
