All the missing victims of North Carolina’s deadliest serial killer have been found, all except Rachel Smith. When the FBI produces a photo proving Rachel is alive and well in Texas, one case is closed but another one is opened. Either this is a case of mistaken identity or there are more people than just Sloan Jordan and Warren Parish who seem to walk the earth without a soul. Along with Detective Nathan McNamara, Sloan and Warren travel south to find Rachel and solve the biggest mystery of all: determining who—or what—they really are.