Nadezhda’s son becomes the prime suspect in a fatal car accident. To save him from trial, Nadezhda takes the blame and receives a two-year prison sentence in a penal colony. Upon returning home, she tries to rebuild her relationships with friends and family, but a new person enters the family — her son’s fiancée. Kind, attentive, and charming, she quickly wins everyone’s trust. But no one suspects that this girl joined the family under a different name with one sole purpose — to avenge the death of her mother, who was killed in that very accident.