Andrés Martínez Segura is a mature single man who has never left Murcia. After inheriting a bookstore and 300,000 pesetas in cash from his Aunt Eugenia, he decides to take a trip to Paris, where his friend Armando lives. Armando finds him accommodation in the home of Mr. and Mrs. Sánchez, a couple of elderly republican exiles, and Andrés will have an affair with their attractive daughter Ninette.