Detective Hildur Rúnarsdottir and her trainee Jakob are plagued by their own demons while working on the chilly west coast of Iceland: Hildur by the disappearance of her younger sisters twenty-five years ago and Jakob by a custody battle that has left him unable to see his son. When a local politician is found shot dead on a ski trail, the two must put aside their personal problems to investigate the murder. While initially thought to be a crime of passion, there are much darker secrets hiding beneath the surface. Hildur and Jakob soon realise that even the dead can't stay buried forever.