Walking the streets of Moscow, indistinguishable from the rest of its population, are the Others. The Others are magicians, possessors of supernatural powers and capable of entering the Twilight, a shadowy world that exists in parallel to our own. Each Other owes allegiance either to the Dark or the Light. Their aim is not mutual destruction, but rather the maintenance of the precarious balance between good and evil. Anton, a young Other who owes allegiance to the Light, is a Night Watch agent, newly seconded to patrol the streets and metro of the city. On his rounds, Anton comes across a young woman, Svetlana, who he realises is under a powerful curse that threatens the entire city, and a boy, Egor, a young Other, as yet unaware of his own power, whom Anton narrowly saves from vampires. Anton is assigned a partner, Olga, a powerful female Other who is trapped in the form of an owl in punishment for a past error of judgement. Together with their colleagues in the Night Watch, they struggle to remove Svetlana's curse and to protect Egor from the vampires that pursue him.