Escape into the unknown

Daria, a pupil of an orphanage, marries a wealthy businessman Dorokhin, and becomes the stepmother of six-year-old Kostya. However, a year later her family life falls apart and she leaves her husband, taking the boy with her. The ex-husband begins the pursuit of Dasha, because Kostya is the heir to a large fortune, which the pursuer can only use while he is his guardian.