Years after murdering an innocent woman and severely disabling her daughter Leire (Ana Alvarez), Ismael Lopez (Karra Elejalde) crosses paths with his victim once again. Fearing that Leire -- who, because of Ismael's actions, has been left mute with the mental capacity of a child -- might still be able to identify him, he decides to hold her hostage in exchange for a hefty ransom. But he doesn't count on becoming attached to her.