Who Killed Nanna Birk Larsen? Head of investigations, Sarah Lund, is about to emigrate to Sweden, but as the tied-up body of a missing girl is found her plans are put on hold. In the course of 20 gripping episodes, each chronicling a day in the investigation, Copenhagen's secrets, corruption and power struggles emerge as the hunt for the killer intensifies and the truth becomes ever harder to find. This riveting thriller has more in common with Twin Peaks than the comparisons to The Wire or Wallander would suggest: a less weird, but more intriguing and satisfying experience. Something of a modern Scandinavian classic and a must-see, if only for the awesome jumper Lund wears to death throughout.