In a quiet settlement, two bodies are found— a man and a woman, frozen in their final, deadly embrace. Local officer Anisimov, who has recently lost his wife and is trying to endure loneliness, takes on the case and soon realizes: this is not an accident. The investigation leads him to a serial killer who watches for his victims on commuter trains…
Meanwhile in Moscow, Major Dima Voinov is trying to make sense of the strange death of a producer who died right in a restaurant. At first glance, these stories seem unrelated, but step by step both threads come together, pointing more and more clearly to the same criminal…