A few days before dying in an accident, Guillermo confesses to his friend Eusebio that he has sadomasochistic sexual relations with a mysterious woman. After time, and by chance, Eusebio decides to look for that woman to tell her that Guillermo has died and that therefore he will never call her again. When he finds her he is enchanted by her. He doesn't dare tell her anything that he knows about her, so as not to scare her away. Little by little they...