The gloomy interior of the apartment in the Gothic style seemed deliberately created as a backdrop for mysterious crimes, and the corpse of a young blonde, student Katya Kutuzova, looked like an element of decor, an illustration of the bloody atrocities of past centuries... The crime itself at first glance seemed banal: the girl’s lover is a banker Semenovich was detained right in the apartment in a state of insanity. However, where did the murder weapon go in this case? And why does a certain Nadenka call Katya’s cell phone early in the morning and tell her a terrible dream, where the killer is not a banker at all, but another mysterious lover of the girl?