Not an easy movie to watch. Scott Walker has made a very gruesome, realistic, deeply disturbing (at times) work that shows the rotten depths of a psychopath's mind (John Cusack, a real gem of the film), and his main antagonist, a National Guard officer (Nicolas Cage, by the way, a very decent play here). Then, there is a young lady involved in wild world of pimps, drugs and alcohol, and she plays a key role here, too. The plot is very straight and often blood-chilling, and the twists of plot can really mesmerize. In fact, the movie was a bit slow sometimes, but nobody in the audience left the theater, 'cause it was real thrilling. The spellbinding Alaskan nature is a real must see here, it simply leaves speechless with its sheer vastness and beauty. Great job of cameramen, though. The story is clear from the trailers and here the whole plot untwists slowly for almost 2 hours, but this is quite good, as the movie never drags. Constant Alaskan snow adds up to the growing suspense. The film is not the masterpiece but worth watching and very strong as a message. Great ending, by all means