Could private detective Tatyana Ivanova have thought that an investigation into a brutal crime would begin with the capture of a boy stealing expensive toys from a kindergarten? And the madhouse resident Grishenka will help her find one of the most important clues? Facing unfortunate people who have turned into living skeletons, and winning the battle with the killer, Tatiana step by step gets closer to solving the mechanism of the crime and exposing the killer...