An unremarkable magical investigation agency suddenly receives a secret order of national importance. Pyotr Ivanovich Schultz is entrusted with leading him, who finds out that someone whom he dubbed a “strange man” is involved in the case. And then another obstacle looms in the form of a bothersome girl, Nastasya Pavlovna Obolenskaya, meddling in places where she absolutely does not want to stick her pretty little nose. And the matter concerning the family of the Emperor of the Russian State takes on enormous proportions, where Schultz and Obolenskaya are just cogs in a merciless mechanism. But from now on they have a task that is more important than the secrets associated with the crown of the Russian Empire. And this task is to survive what befalls them, dragging them into an endless whirlpool, more like the irreconcilable millstones of fate.