Two years have passed since Sasha left the orphanage. Social adaptation is difficult for her, she perceives the world as a hostile environment. Since childhood, the girl has been used to defending her right to life and solving problems through fights — she spends all her free time in the basement hall in the ring for fights without rules. Despite his fighting nature and hobbies, deep down Sasha dreams of exactly the opposite: not to cripple people, but to treat them. But there is no money to study at a medical school, and they do not take you to a hospital without an education. Fate brings her together with a disabled teenager Kolya, whose mother is torn between her son, work at a fish factory and a policeman boyfriend, and tries to find a nurse for her son. This meeting radically changes the lives of all the heroes.