You can’t confuse this killer’s handwriting with any other: he takes the heads of his victims. Many of the most unexpected theories will have to be analyzed by the head of the “homicide unit” Nikita Kolosov and journalist Katya Petrovska before the twists of the investigation lead them to the doors of a respectable mansion. Besides rooms furnished with aristocratic refinement, there’s also a basement—so much so that even the owner goes down there very unwillingly. And that’s understandable: a normal person can hardly accept what happens beneath those dim arches…