A maniac has appeared in a small town, hunting young attractive girls. Ten murdered people have already been found in the forest belt: their bodies are clean, but their faces are mutilated and covered with children's masks. Stas Polyansky, the investigator leading the case, is at a loss: who commits such terrible crimes? But the maniac acts extremely carefully and leaves no evidence behind. During the investigation, Stas meets three sisters: Natalya, Renata and Lolita. The girls are so different, but so friendly! Inexplicably, these individuals find themselves involved in a series of chilling events. And who knows, maybe they alone will be able to identify the maniac?...