Sylvie, a young woman who believes to be cursed, lives in the town of Carcassonne with her guardian, Mr. Toulzac. He is a retired teacher who wishes to discover the secret of the Cathars, a Christian sect of the Middle Ages that glorified death over life. Sylvie meets Roland, a composer who instills new hope into her troubled mind. Mr. Toulzac then asks her then to renounce the world and go down a secret tomb he has just found.
| Actor | Role |
|---|---|
 Pierre Richard-WillmRoland Samblaca | Roland Samblaca |
 Jany HoltSylvie | Sylvie |
 Line NoroMlle Perdrières | Mlle Perdrières |
| AAnne BelvalMarie-Claude | Marie-Claude |
 Gaston GabarocheÉloi | Éloi |
 Robert DhéryL'aubergiste de Tournebelle | L'aubergiste de Tournebelle |
 Simone ValèreDominique | Dominique |
 Fernand CharpinFontvieille | Fontvieille |
 Pierre PalauNot listed | Not listed |
| Robert DhéryNot listed | Not listed |
 Édouard DelmontNot listed | Not listed |
| NNicole BelyNot listed | Not listed |
| LLilly GrecoNot listed | Not listed |
 Julien MaffreNot listed | Not listed |
| JJean-Pierre BelmonNot listed | Not listed |
 Léonce CorneNot listed | Not listed |
 Paul DemangeNot listed | Not listed |
 Jean DiénerNot listed | Not listed |
 Guy FavièresNot listed | Not listed |
 Marcel MaupiNot listed | Not listed |
 Marcelle MonthilNot listed | Not listed |