Experienced virologist Anya Markova leaves her personal and professional life in Moscow and goes to work in a research center in Novosibirsk. She is clearly trying to escape from personal pain, but in a new place, fate throws another test at the heroine – an outbreak of an unknown disease is recorded at the site of an illegal dump of a large factory meat processing in a remote village. . Wanting to rehabilitate herself for past mistakes, Anya decides to check out the village for herself. However, local residents, not trusting modern treatment methods and not realizing the danger, are hostile to the virologist. A new type of plague breaks out in the village, threatening to spread to the city of a million people.