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.
| Actor | Role |
|---|---|
 Yves MontandMathias | Mathias |
 Anouk AiméeAnne | Anne |
 Adriana BogdanMoira | Moira |
| HHector CamerlynckHernhutter | Hernhutter |
 François BeukelaersVal | Val |
 Michael GoughJeremiah | Jeremiah |
 Senne RouffaerElckerlyc | Elckerlyc |
| DDomien De GruyterWerner | Werner |
| JJan PeréHenrik | Henrik |
 Nicole DebonneNot listed | Not listed |
| WWilfried CoppensNot listed | Not listed |
 Greta Van LanghendonckNot listed | Not listed |
| PPatrick ConradNot listed | Not listed |
| JJacqueline Royaards-SandbergNot listed | Not listed |
| DDenise ZimmermanNot listed | Not listed |
| FFrédéric DevreeseNot listed | Not listed |
| CCatherine DejardinNot listed | Not listed |
| AAlbert BelgeNot listed | Not listed |
| FFardjad AzadNot listed | Not listed |
| HHilda Van RooseNot listed | Not listed |