As the winter of 2020 settles over the quaint Norwegian town of Mjölvik, Seiren Sommerfeldt finds solace in the familiar rhythms of daily life. However, unsettling occurrences soon disrupt his routine, as supernatural forces emerge to his ordinary life. Seiren must confront the presence of the unknown that threatens his life and loved ones that he has fought so hard to maintain. As ancient legends come alive in Mjölvik, he realizes the danger is far greater than mere superstition. Dark entities lurk beneath the surface, forcing Seiren into a battle not only for survival but for his very soul. Seiren is forced to question everything he once believed in, as the line between reality and the mythic realm fades, leading him toward a destiny he never imagined.