A huge unfinished building standing in the middle of Shelkovо has long drawn the attention of fans of mystical stories and thrills. People call it the Portal, and say that inside, from time to time, people disappear without a trace. Either they fall through into another world, or they become victims of an unknown monster.
A girl named Yulia seeks help from another girl whose brother disappeared after visiting the place—and something frightening has now started looking in through the windows at her too. The girl is sure that it’s exactly that thing that took her brother, and now it wants to take her as well. Vlad believes it all is connected to a ritual carried out for several months by a maniac killer, but the police don’t want to hear about it: they’ve arrested their suspect and consider the case closed.
Meanwhile, March 17 is getting closer, and something is bound to happen that day. The final novel of the cycle.