From the outside, Masha's life is an example of a happy family: a businessman husband, a son, a prestigious job. But every night she has nightmares about the past. One small lie in her youth, which seemed to be the best way out of a difficult situation, leads Masha into a maze of deception. She lives in another city under a false name and cannot tell the truth even to her husband. Masha's happiness is threatened when she receives a letter in the mail from the past - from the city of her childhood, which contains only her childhood photo.