糸井重里が主宰するWebサイト「ほぼ日刊イトイ新聞」の人気連載「ほぼ日の怪談。」がドラマ化された。。The story follows police officers Kata and Arnar, in charge of investigating gruesome murders from Iceland’s first serial killer. The unlikely pair slowly starts connecting the case to a mysterious and abandoned boys’ home named “Valhalla”.。