Lyuda Daineka's beloved friend's grandmother dies. Before her death, the old woman says something mysterious about treasures, as if she is delirious. Nina doesn't take her grandmother's words to mind. And a few years later the girl is killed. The investigation is looking for everyday reasons for what happened, but Daineka is sure: the misfortune happened because of family secrets that Nina's grandmother knew. To find her friend's killer, Luda dives into the distant past of her family.—Tango Papa