Wallanders The Man Who Smiled (Swedish/Svenska)

After killing a man in the line of duty Inspector Kurt Wallander finds himself spiraling into an alcohol-fueled depression. He has just decided to leave the police when an old friend, Sten Torstensson, asks him to secretly investigate the recent death of his father in a car accident. At first Kurt dismisses his friend’s suspicions as unlikely, but then Sten is found murdered in exactly the same manner as a Norwegian businessman shortly before. Against his previous judgement, Kurt returns to work to investigate what he is convinced is a case of double murder.