Nordic noir films are crime mysteries that often have a dark atmosphere and morally ambiguous characters, and deal with social issues, corruption and cover-ups.
http://www.ranker.com/list/best-nordic-noir-movie/weik,
Just Another Love Story
Insomnia
Slim Susie
The Man on the Roof
The Man from Majorca
The Girl with the Dragon Tattoo
A Somewhat Gentle Man
Headhunters
Black's Game
Crime and Punishment