WHEN A DOG WALKER discovers a decaying corpse in Harterhow Woods it is surely just a matter of time before the police will close in upon the murderer. But despite a nationwide appeal the distinctive remains defy identification. Skelgill believes he knows the perpetrator - but his team have other ideas. As they unearth contradictory clues Skelgill becomes impatient - an arrest is made. But when the victim is finally named a new prime suspect emerges. Skelgill is determined to prevail - but the facts don't fit his gut feel. And yet, as they search for a vital witness it dawns on him that there may be not one but two killers at large. And one of them may be compelled to strike again.