At the outbreak of the Spanish Civil War, the nun Maria is forced to flee her convent. She takes refuge in a brothel, until it is liberated by a woman's anarchist group. Maria joins the group and eventually goes to the front. The women's group faces the problems of fighting not only the nationalists, but also factions on the left seeking to impose a more traditional military structure.
| Directing | Vicente Aranda | Director |
| Writing | Antonio Rabinad | Writer |
| Writing | Vicente Aranda | Writer |
| Editing | Teresa Font | Editor |
| Camera | Juan Amorós | Director of Photography |
| Production | Fernando de Garcillán | Associate Producer |
| Art | Josep Rosell i Palau | Art Direction |
| Costume & Make-Up | Javier Artiñano | Costume Design |
| Production | Andrés Vicente Gómez | Executive Producer |
| Production | Carmen Liaño | Casting |
| Sound | José Nieto | Music |
| Camera | José Luis Alcaine | Director of Photography |
