Vyacheslav Melnik can be dangerous to others. Realizing this, he never uses his supernatural power. However, in order to save a loved one, he will have to break a taboo. His anger will break free and take the form of a silver rat. The consequences will be terrible: a serial killer will go hunting, a psychopath will get behind the wheel of a multi-ton truck, and small demons will rush into the city from a cold, snowy world in which a huge mill wheel is constantly turning.