Svetlana works as a pediatrician, dreams of her own child, but due to health problems can not know the happiness of motherhood. Even the IVF procedure, which was persuaded by her husband, a private lawyer Ilya, did not help. It seems to Svetlana that forced childlessness is gradually destroying their family life.

One day an unknown woman named Irina comes to her reception and brings her son Kostya. Svetlana is shocked: Kostya is very similar to Elijah as a child. And not only outwardly, but also facial expressions, gestures, general behavior. At first, Svetlana tries not to attach importance to this, but suspicions still gnaw at her, not giving her peace. Svetlana soon learns that Kostya's mother was a client of Elijah a few years ago. The last - the most important - argument is a genetic examination, which proves: Elijah - the biological father of Kostya.

Accusing her husband of infidelity, Svetlana files for divorce. Despite Elijah's sworn assurances that all this is a terrible mistake, the family is falling apart ...