To help her brother recovering his memory, Tina tells him about their past. Born as a boy, in her adolescence she began an affair with their father. She ran away with him and had a sex change operation to please him, but he left her for another woman. When her incestuous relationship ended, Tina returned to Madrid, coinciding with the death of their mother, and got reunited with Pablo. Tina has been grateful with Pablo who did not judge her. Tina also tells him that she has found a lover. Pablo gradually begins to recover; he realizes that Tina's new love is Antonio and that she is in danger. He goes with the police to Tina's apartment where she is being held hostage by Antonio. Antonio threatens a bloodbath unless he can have an hour alone with Pablo. Pablo agrees and joins him. They make love and Antonio then commits suicide.