Disgraced Swedish detective Jonas Engstrom (Stellan Skarsgard) arrives in the bleak wastes of Northern Norway to hunt for a killer who leaves barely a trace even methodically washing the hair of the pretty victim. In a failed attempt to catch the killer Engstrom accidentally kills his partner and protects himself by covering it up. His guilt and insomnia resulting from the region's 24-hour-a-day summer sunshine causes him to make fatal mistakes as he loses his grip on his mind and the case. A polished, complex psychological thriller with a superbly paranoid performance from Skarsgard set in one of Europe's most eerie, moody and evocative landscapes.