Participants of the New Year's carnival swirled in dance. And suddenly the festive noise was blocked by a woman's cry. The dancers parted. In the center of the lobby lay a man dressed as Dracula. A pool of blood flowed from under the body, an abandoned pistol was lying nearby... Lera did not understand what was happening in their Presnya Palace business center: first, an accident with her friend Rita, now the murder of her boss Shostok... There was only one clue: a piece of old wallpaper sandwiched in the hand of the dead Rita. About thirty years ago, similar wallpapers were found in Moscow apartments...