Lara always dreamed of living on Sretenka and, when she was offered to buy a room, she agreed without hesitation. But on the day of the housewarming, in this large and unfriendly communal apartment, a murder occurred right before her eyes... Nina lost her daughter a long time ago, but unexpectedly found her in her neighbor Lida. The women became almost like family when Lida suddenly disappeared without a trace. And this was not the only strange story that happened in their apartment... When the grandson of the deceased woman was shot, private detective Sergei Koltsov realized: a real hunt had been announced for the residents of the “bad” apartment and he was obliged to prevent the next victim... It was useless to try to escape from himself. The dark side of your soul will still catch up...