Norway. Winter. Nils introvert (Stellan Skarsgård) works hard at the wheel of his plow removes snow immense that continuously roads and passes of the mountains, the frozen area where he lives. Has just been named an honorary citizen of the city, he learns that his son died of a heroin overdose. Nils refuse to believe the official version and starts looking for those who are believed to have his son’s killers. Soon becomes a kind of justice in the shadows, unknown hero whose identity he did not suspect anyone. A black comedy full of impressive images, landscapes and superb midwinter potretizare to the smallest detail mentalities underworld Swedes, Norwegians and even Serbian mobsters, represented by the Serbian boss played by actor Bruno Ganz (Downfall, Unknown).