We're in the reindeer herding region. These are the Sami, an indigenous people of Sweden, who make their living from reindeer herding. They have to cohabit with the locals, who want the region to be developed for mining. There's also a non-Sami native who enjoys killing the reindeer. But the police are not investigating. A young Sami woman tries to move the investigation forward against the police's will.
We're constantly in the cold, in the snow. The pace is slow. So is the pace of the film. But the plot, simple on the face of it, contains twists and turns (the mistreatment of women is mentioned, for example) that mean we're not in an investigative film with a false culprit to distract the viewer. The culprit is known very quickly, the plot being that the police never manage to catch him. So this is not a detective film, but a drama. With little vignettes of local life in the Sami community. The film has a realistic tone, which makes it a little slow. But it's coherent. Rather than being slow, it takes its time to develop the plot, articulated with local life.
Note that the music is far too present. It insists in a heavy-handed way to make the film seem suspenseful.