Among normal humans live the “Others” possessing various supernatural powers. They are divided up into the forces of light and the forces of the dark, who signed a truce several centuries ago to end a devastating battle. Ever since, the forces of light govern the day while the night belongs to their dark opponents. In modern day Moscow the dark Others actually roam the night as vampires while a “Night Watch” of light forces, among them Anton, the movie’s protagonist, try to control them and limit their outrage

Early 18th century. Cartographer Jonathan Green undertakes a scientific voyage from Europe to the East. Having passed through Transylvania and crossed the Carpathian Mountains, he finds himself in a small village lost in impassible woods. Nothing but chance and heavy fog could bring him to this cursed place. People who live here do not resemble any other people which the traveler saw before that. The villagers, having dug a deep moat to fend themselves from the rest of the world, share a naive belief that they could save themselves from evil, failing to understand that evil has made its nest in their souls and is waiting for an opportunity to gush out upon the world.

A man who serves in the war between the forces of Light and Dark comes into possession of a device that can restore life to Moscow, which was nearly destroyed by an apocalyptic event.