Harassed by the pressure of the incessant rumors that spread through the capital of Madrid, Sonsoles of Icaza decides to end her romance with Ramón Serrano Súñer. To forget her lover, the Marchioness of Llanzol takes refuge in the peaceful San Sebastian, where her summer holidays take place. However, the determination of the aristocrat collapses when she discovers that her new neighbors are the Serrano Súñers, who have just settled in the Basque city. Despite feeling observed, both will be unable to keep away from each other for a long time. However, this encounter will mark their lives irremediably when Sonsoles of Icaza discovers that she expects a daughter of her lover.