In the brilliant new novel of suspense by the New York Times bestselling author, Boston medical examiner Dr. Maura Isles must face a savage serial killer and shattering personal revelations. As a pathologist in a major metropolitan city she has seen more than her share of corpses every day, but never before has the lifeless body on the medical examiners table been her own. When a DNA test confirms that the mysterious doppelgnger is her twin sister, an already bizarre murder investigation becomes a disturbing and dangerous excursion into a past full of dark secrets.
