The Belgian linguistics professor Matthias is going through a difficult period in relations with his girlfriend Anne. She is French, he is Belgian, and, oddly enough for an enlightened Europe and a doubly enlightened university environment, this small difference is a shadow on the couple’s personal life. One day, during a train ride, Anne disappears and Mathias goes looking for her in an unknown city.
| Directing | André Delvaux | Director |
| Writing | André Delvaux | Writer |
| Production | Mag Bodard | Producer |
| Camera | Ghislain Cloquet | Director of Photography |
| Sound | Frédéric Devreese | Original Music Composer |
| Editing | Suzanne Baron | Editor |
| Art | Claude Pignot | Production Design |
| Writing | Johan Daisne | Novel |
| Costume & Make-Up | Alexandre Marcus | Makeup Artist |
| Sound | Antoine Bonfanti | Sound |
| Sound | Daniel Couteau | Sound Effects |