Nun Belen works as a spiritual guide in a women's prison. Is a very understanding woman, possibly due to her past. At the past she was Magda, the star of the cabaret "The Mill of Twenty." She was attractive, young and admired by the public, she had it all, but three very different men end up marking her destination. A fate that is inexorably opposed to her happiness.
| Directing | Luis César Amadori | Director |
| Editing | Antonio Ramírez de Loaysa | Editor |
| Production | Jerónimo Montoro | Unit Production Manager |
| Camera | Eduardo Noé | Camera Operator |
| Camera | Antonio L. Ballesteros | Director of Photography |
| Production | Miguel Tudela | Production Manager |
| Costume & Make-Up | Carmen Sánchez | Hairstylist |
| Art | Antonio Luna | Property Master |
| Writing | Luis César Amadori | Writer |
| Camera | Simón López | Still Photographer |
| Sound | Gregorio García Segura | Music |
| Costume & Make-Up | Carmen Martín | Makeup Artist |
| Production | Valentín Panero | Assistant Production Manager |
| Art | Enrique Alarcón | Production Design |
| Art | Francisco Rodríguez Asensio | Settings |
| Camera | Luis Peña | Assistant Camera |
| Production | Cesáreo González | Producer |
| Art | Enrique Alarcón | Set Decoration |
| Camera | Augusto Pérez | Assistant Camera |
| Writing | Jesús María de Arozamena | Writer |
| Production | Benito Perojo | Executive Producer |
| Costume & Make-Up | Balenciaga | Costume Designer |