Madrid, 1947. In an isolated Spain during the years after World War II, Luisa, the attractive widow of Captain Estrada, refuses to live according to the social norms that repressed and subjected women. She, on the other hand, is a temperamental woman of liberal ideals who lives her love life as she pleases. One day, she receives the visit of the handsome captain Javier Zaldívar, who has just returned to Madrid after spending some time in the Spanish Sahara. Old friend of her husband, although always in love with her, Javier will not hesitate to court Luisa now that she is a widow. So she lets herself be loved and both initiate a torrid relationship.