A resident of Kislovodsk is begging for help to prove to her ex-husband that she gave birth to a daughter not from him, but from a lover whom her ex-husband beat to death in a fit of jealousy. The woman is worried that her ex-husband, who is in prison for murder, will return and take her daughter for himself, because the girl is registered with him. But the relatives of her murdered lover doubt that he became the father of little Dasha.

A brother and sister who grew up in foster care believe that a DNA test will help them find biological relatives about whom they know little. They only know the name of the blood mother, but they assume that they may have many brothers and sisters. Where will their search lead, and will they really have to look for answers to all their questions thousands of kilometers from Moscow?