English-speaking sci-fi/horror/thriller fans, don't be put off by the fact that this film is subtitled. It's a brilliantly dark piece with a genuinely heart-stopping twist at the end, which more than makes it worth investing a couple of hours in.
The film is cleverly shot without relying too heavily on over-egged special effects, and everything hinges on atmosphere - the claustrophobic, desperate, hopeless atmosphere that bleeds from the screen throughout the tense drama. Instead of gore, it builds on the tension of expectation, half-told stories and rumours, and confusion; and by building up such a natural backdrop of terror, there is nothing to distract from the interaction and reaction of the characters to each other and the world around them, excellently played by a very strong cast.
The theme of propaganda runs mockingly throughout the film, and lends a disturbing, cynical edge to it all. We feel as misled and in the dark as the young members of the group do, not knowing what led mankind to this point, what created the infectious mutants outside the shelter, or just what lies beyond life in lockdown.
I felt genuinely moved at the end of this, and would recommend it for anyone after another slant on the sci-fi/horror flick genre.