The Dogs of Riga by Henning Mankell

While this mystery starts with the discovery of two dead men in a fishing boat, it quickly becomes clear that its scope extends beyond Sweden's borders to Latvia, which is growing restive after having been a part of the Soviet Union since the end of World War II. When Inspector Wallander travels to Riga to investigate the death of a colleague he finds himself drawn beyond the official explanation in a land where he can trust no one and can't even speak the language. I really enjoyed this mystery--which was fully of twists till the very end.