After suffering a personal tragedy, Muscovite Nastya Vyazemskaya decided to retrain from a historian to an investigator. It must be said that her first degree will prove useful to her more than once in her work. Her new case is a mysterious murder that took place at the «Kolomenskoye» museum-reserve. The body of a girl in an antique dress was found here in Golosov Ravine. An elderly photographer says that she was killed by a «ghost rider in a black cloak». The strangest thing is that the investigators really did find hoofprints at the crime scene. Could it be that Nastya and her colleagues are dealing with something mystical this time? Or is the criminal quite real?
