The premise for this film is brilliant. The underground setting is brilliantly used, with striking photography and visual story-telling. The film's last line is something like, "Did they really live like this?", seeing the squalor of the underground lair. Sequences are fantastically gruesome, in documentary style. Not only is the film well shot, it has some points to make about oppression. See this film if you get the chance, it deserves a much higher IMDb rating.