Two friends come to a remote village for fishing in the winter, not knowing that mysterious deaths of people have become more frequent in the area lately. An excellent bite on the ice of the lake ends in tragedy - one of the friends dies, the second is accused of murder. Investigator Krymov takes on the case. And again, one after another, mysterious and terrible deaths occur, now not only to villagers, but also to police officers. And the reason is in the pike tribe, which takes revenge on the human tribe...