Both the chronicle of a horrendous crime and the story of the strange love story that it hides. Nina is a young woman who, living a gray period in the history of Spain, does not renounce to achieve happiness. She relives through her difficult childhood, her marriage to a man, Miguel older than her. She fights against an unhappy life and is torn between a frustrated marriage and an unhealthy relationship with a co-worker of her husband. All this ends in the latter's murder. She ends up being sentenced with one of the last death sentences of the Franco regime.