Moscow, 2000s. In the sordid stairwell of an ordinary building, a young woman is murdered. She belongs to the clan of "Others of the Shadow", creatures with supernatural powers responsible for enforcing the millennial truce concluded between the armies of Shadow and Light. To prevent a blast of violence from plunging the world into chaos, a culprit must be found. Only an "Other of the Light" has no alibi. Each camp sets off in pursuit ...