The feature debut of writer/director Javier Balaguer, Sólo Mía opens on a scene of a relationship gone terribly awry. Some type of violence is occurring off-camera. Soon we see that Angela (Paz Vega of Sex and Lucia) has Joaquín (Sergi López of Dirty Pretty Things) bound and gagged. "Have you ever tried, just once, to see my side?" she asks him. The film jumps back in time, showing us the history of their tumultuous relationship. On the first day of her job as a receptionist at an ad agency, Angela meets Joaquín, who turns out to be her boss. He charms her, and after a whirlwind courtship, they get married. Angela quickly gets pregnant, and Joaquín insists that she quit smoking and quit her job. He wants to control her; she will not be controlled. Their arguments grow more heated. One day, when he finds a pack of cigarettes she's hidden away, he smacks her. He quickly apologizes, and she eventually forgives him, but things just get worse. He gets a promotion at work, where he works with Alejandro (Alberto Jiménez of El Bola). Joaquín gets more and more stressed out about what's going on at the office. One night, after their anniversary party, while their baby girl is at Angela's mother's (María José Alfonso), Joaquín drunkenly assaults Angela. Andrea (Elvira Mínguez), Alejandro's wife, eventually persuades Angela to leave Joaquín, but Joaquín is not ready to give up on their relationship, or give up his daughter. With the legal system unresponsive to her concerns, Angela is forced to take bold action to protect herself.