Maria Lukash is the daughter of a professor of medicine and a talented cardiac surgeon. Therefore, when her 9-year-old patient, Maya, falls into a coma, it causes real scandal and many questions. Maria is eliminated from surgery and from participating in the girl's rehabilitation. And thanks to the efforts of Polina Mayevskaya, the adventurous bride of Professor Lukash, Maria quarrels with her father, is released from his clinic, and is sent to a regular children's clinic by a district doctor. Young patients with sympathy call Maria our doctor. A woman will not only help many people, but also understand the causes of a failed operation and find their own happiness.