Isabel returns to Spain, after several years of absence, to be cured of a neurosis. His daughter Ana, whom he has not seen in all this time, decides to spend the holidays with her, taking advantage of the fact that her boyfriend has gone to study in Germany. During her stay in the sanatorium, Ana meets Mario, an attractive young man somewhat unbalanced, who tries to seduce her. Although at first she does not show any interest, little by little she becomes attracted to him.
| Actor | Role |
|---|---|
 Viveca LindforsIsabel | Isabel |
 Sonia BrunoAna | Ana |
 Francisco RabalJulio | Julio |
 Julián MateosMario | Mario |
 José María PradaDr. Segura | Dr. Segura |
 Cándida LosadaNot listed | Not listed |
 Laly SoldevilaSofía | Sofía |
 Enriqueta CarballeiraEncarnita | Encarnita |
 Gisia ParadísSilvia | Silvia |
 Eloísa MuroNot listed | Not listed |
 María VicoNot listed | Not listed |
 Alfonso del RealMoncho | Moncho |
| JJuan Antonio ArévaloNot listed | Not listed |
 Valentín TornosTío de Ana | Tío de Ana |
 José María LaberniéNot listed | Not listed |
| JJuana AzorínNot listed | Not listed |
 Perla CristalMaruja | Maruja |
| JJulia PeñaNot listed | Not listed |
| JJosé María ReselNot listed | Not listed |
| JJulián del MonteNot listed | Not listed |
| MMoisés MenéndezNot listed | Not listed |
 Mercedes BorquéNot listed | Not listed |
 Charly BravoNot listed | Not listed |
 Francisco VidalNot listed | Not listed |
 Paul EllisNot listed | Not listed |
 María Elena FloresNot listed | Not listed |
 Ángel MenéndezNot listed | Not listed |
 Lola LemosNot listed | Not listed |
| CCarmina SantosNot listed | Not listed |
| RRosario PérezNot listed | Not listed |