The young artist Wanda Leibovitz comes to Paris, hoping to forget unfortunate love. Soon after arrival directly at the station Wanda meets the mysterious old woman suggesting to rent at it the room (whom the old woman, allegedly, held ready for the now deceased sister). Wanda doesn't know yet that this room will change all her life shortly after it slightly opens a mysterious forbidden door.
| Actor | Role |
|---|---|
| DDominique ErlangerWanda Leibowitz | Wanda Leibowitz |
| OOdette DucLéonie | Léonie |
 Catherine RichMona | Mona |
 Michel LemoineFranck, l'amant de Wanda | Franck, l'amant de Wanda |
| RRoland ToporHomme dans le métro | Homme dans le métro |
 Jean ServaisDe Gournais, le directeur de la galerie | De Gournais, le directeur de la galerie |
 Pierre VaneckDr. Liancourt | Dr. Liancourt |
 Georgette AnysLa mère de Wanda | La mère de Wanda |
 Arlette EmmeryL'infirmière | L'infirmière |
 Claude MelkiLe barman | Le barman |
 Liza BraconnierNot listed | Not listed |
 Jean DrozeNot listed | Not listed |
| AAdrien ForgeNot listed | Not listed |
 Philippe GastéNot listed | Not listed |
 Karine JeantetNot listed | Not listed |
 Yvon LecNot listed | Not listed |
 Roger LumontNot listed | Not listed |
 Paul PavelNot listed | Not listed |
 André TomasiNot listed | Not listed |
| JJean-Claude RomerUn invité au château (uncredited) | Un invité au château (uncredited) |