Nordic Noir is a subgenre of crime fiction that originated in the Nordic countries, particularly Sweden, Norway, Denmark, and Finland. It is characterized by its dark themes, complex characters, and a focus on social issues. The stories often feature morally ambiguous protagonists and explore the psychological aspects of crime, set against bleak, atmospheric backdrops. This genre gained international popularity through works like Stieg Larsson's "The Girl with the Dragon Tattoo" and Jo Nesbø's novels. Nordic Noir often incorporates elements of realism, emphasizing the impact of crime on society and the human condition, making it distinct from traditional detective fiction.