The life of the prestigious attorney Patricia de Lucas (Blanca Portillo) becomes a hell after the disappearance of her son Victor (Marc Domenech), who does not find a day out of school. Hours later the little one appears, but bruised and sweaty, after to have managed to escape while trying to kidnap it. The police mobilize and manage to find the responsible … at least in appearance. But since the evidence is not enough, the alleged kidnapper is released. That’s when Patricia decides to take justice on her own.