On the trail of a serial killer, the path splits in two… FBI special agent Kelly Jones has worked on many disturbing cases in her career, but nothing like this. A mass grave site unearthed on the Appalachian Trail puts Kelly at the head of an investigation that crosses the line from Massachusetts to Vermont, from wealthy vacationers to poor transients, from a serial killer to a copycat nemesis.
Assisted by law enforcement from both states and a forensic anthropologist, Kelly searches for the killers. But as darkness falls, another victim is taken. Kelly must race to save him before he joins the rest…in the boneyard.