When Harper and Tolliver are hired to find a missing grandson, they learn that several teenage boys have disappeared from Doraville. Harper soon finds the eight bodies buried in the half-frozen ground, but as she becomes part of the investigation, she learns more than she cares to about the dark mysteries and long-hidden secrets of Doraville: knowledge that could make her the next victim to end up in an ice-cold grave.
When a woman's body is found in a North London flat clutching a bloodstained sliver of X-ray, DI Thorne discovers that the victim's mother had herself been murdered fifteen years before by the infamous serial killer Raymond Garvey. When more bodies and more fragments of X-ray are discovered, a horrifying picture emerges: a killer is targeting the children of Garvey's victims...