Ekaterinburg, 1880. In a mansion owned by Count Sobolevsky, several deaths occur one after another. Outwardly, they are in no way connected with each other and look like accidents. At the same time, the city is discussing unheard of barbarity: an unknown person dug up more than a dozen graves of young girls in the cemetery and stole their corpses. Are these events related? What secret does the old mansion hide? Are the deaths banal murders or the result of a curse hanging over the mansion? A doctor, a pragmatist and a scientist, and the young Baroness Rozalskaya, who inherited the gift of witchcraft from the old healer, take on the solution. Which one will be right? And won’t the investigation be hindered by the Baroness’s desire to find not only answers to questions, but also to find the key to the count’s heart...