Intern forensic expert Prokhor Marushchenko comes to work in the small town of Stavnichy. From urban legends, he learns about the Chupacabra, which terrifies the residents, and about the appearance of a pink cloud near Wolf Mountain, supposedly serving as a bridge to a parallel world. Residents are sure that this cloud is the creation of aliens. Among Prokhor's patients are people with greenish skin. While on the city ruins, the hero finds himself in the range of a pink cloud... Visions begin to haunt him. The situation in Stavnichy is becoming threatening. And soon Prokhor will have a duel with the Chupacabra...Will the guy be able to unravel the cause of the strange phenomena and the mystery of the Chupacabra?