Aspiring neonatologist Elena helps Mikhail, who lost his wife during childbirth, deliver a premature baby. The support of the young father grows into something more and Elena agrees to marry him. She quits her job and raises little Artyom as her own. After 15 years of a happy marriage, Mikhail tells Elena that he is in love with his colleague Nastya and wants a divorce. The young mistress demands that everything be taken away from Elena: access to family accounts, an apartment and custody of Artyom. In order not to lose her son, Elena returns to work at the hospital, where she meets her first love - Andrey, whom she abandoned many years ago, choosing in favor of Mikhail. Elena will have to prove that she has not lost her professional skills, return her son and believe in love again.