Former detective Salka Steinsdóttir finds herself unwillingly pitched into the toughest investigation of her life, just as she returns to the tranquil north of Iceland to recover from a personal trauma. The victim is someone she had pursued earlier in her career and had never been able to pin down. Now a killer has taken the law into their own hands and meted out brutal retribution for ancient crimes. Salka is faced with tracking down the murderer of a stalwart of the church and the community, a man whose reputation stretches deep into the past, and even into the police team tasked with solving the case. As the killer prepares to strike again, Salka and her team search for the band of old friends who could be either killers or victims or both.
