After her parents' divorce, twelve-year-old Sara and her sister live with their mother and her girlfriend. Both girls are content, but that cannot be said about their father. Sara is growing up. School and boys start to bother her, and when her parents' quarrel breaks out, her impulsive behavior and teen rebellion may have a decisive impact. Pepa San Martín's delicate debut is based on a real lawsuit about the right of a lesbian couple to raise children.