Although like a science fiction on the surface, Stalker talks about our human nature based on metaphysical interpretation and biblical background. As Nariman Skakov mentioned in his “Revelation of Stalker”, the movie makes heavy uses on biblical text, especially text from chapter Revelation. Those reference indicates the theme of this movie: a potential apocalypse in the metaphysical level. In contrast, those three people entered the “zone” for the truth, the solution to such a crisis.
In this movie, there is a extremely strong contrast between ordinary world and “the zone”. The ordinary world is largely limited by rationalism and dogmas. Yet “the zone” is the place to find truth. Therefore, the ordinary world is black and white