Anastasia Ardashnikova is the pride of the Sorbonne University, having graduated brilliantly from its Faculty of Law. But mastering the art of criminology in Paris is one thing, while working for Russia’s detective police is quite another. Nastya realizes this immediately upon returning to St. Petersburg. Upon her arrival, she investigates the mysterious case of a «ghost» and encounters the hot-tempered police inspector Taras. He looks upon the French-educated top student with irritation until he becomes convinced of the usefulness of her modern methods. Vast experience and a brilliant education, an iron grip and keen intuition—it makes for an extraordinary partnership. But the most difficult case for the gifted detective becomes the investigation into a fateful tragedy from her own childhood.