Carl Mørck has settled into Department Q and is ready to take on another cold case. This time, it's the brutal double-murder of a brother and sister two decades earlier. One of the suspects confessed and is serving time, but it's clear to Mørck that all is not what it seems. Kimmie, a homeless woman with secrets involving certain powerful individuals, could hold the key--if Mørck can track her down before they do...