On a stopover in Barcelona, Fériaud Roland discovers a corpse in the hotel room next door. He wakes up in a strange clinic without remembering who brought him there. The doctor insists he hallucinated, but it's not long before he obtains evidence that it wasn't a dream.
| Directing | Jacques Deray | Director |
| Writing | John Gearon | Novel |
| Camera | Jean Boffety | Director of Photography |
| Camera | Jean Charvein | Director of Photography |
| Sound | Claude Bolling | Original Music Composer |
| Editing | Henri Lanoë | Editor |
| Writing | Jean-Claude Carrière | Screenplay |
| Writing | Tonino Guerra | Screenplay |
| Production | Yves Gasser | Producer |
| Production | Yves Peyrot | Producer |
| Costume & Make-Up | Thérèse Ripaud | Costume Design |
| Production | Klaus Hellwig | Co-Producer |
