During the twenty years school reunion classmates suddenly learn that one of them - Nadezhda Kruglova - is a proud mother of ten children.

Strange things happen in city N. People massively fall into a state similar to a coma. Doctors are at a loss. Investigate the incident entrusted to the best investigator of the city. He, a follower of the materialist position, is faced with inexplicable and mystical events that change not only his worldview, but also his life...