Kahina Zadi, a 32-year-old French police officer, travels to Kiruna, Sweden, to probe the brutal murder of a French national. She teams up with Anders, a Swedish prosecutor with Sami roots, to launch the investigation. As they delve deeper, more murders occur, revealing that the initial victim was just the beginning of a much darker mystery. The victims appear to have no connection other than being targeted in a meticulously planned and brutal fashion.

In their quest for answers, Kahina and Anders must confront their own buried pasts. This personal journey through their painful histories becomes crucial in stopping the violent murders that are plaguing the small mining town of Kiruna.