A young woman is found brutally murdered near Sognsvann. She is dressed in police uniform and has an unmistakable tattoo on her chest. The next day, a top politician from the Labour Party jumps in front of a train at Lillestrøm station. As Police Detective Charlie Robertson dives into these cases, he sees connections no one else is willing to see. Robertson and his team get entangled in a pitch-black Oslo in which drugs, prostitution and human trafficking operate freely.