Lera is a star Moscow obstetrician, a supporter of the idea of natural childbirth. One of her clients is Masha, the young mistress of the influential businessman Shakhov. Masha is supposed to give birth to his long-awaited heir, but due to complications that arose during childbirth, the child is born in extremely serious condition. Shakhov initiates an investigation and now from answering the question "who is to blame?" The fate of not only the clinic will depend, but, possibly, Lera herself, who they are trying to make guilty of what happened.