Body Double (Rizzoli & Isles #4) by Tess Gerritsen

Boston medical examiner Dr. Maura Isles literally meets her match–and must face a savage serial killer and shattering personal revelations–in the brilliant new novel of suspense by the New York Times bestselling author of The Surgeon and The Sinner.

Dr. Maura Isles makes her living dealing with death. As a pathologist in a major metropolitan city, she has seen more than her share of corpses every day–many of them victims of violent murder. But never before has her blood run cold, and never has the grim expression “dead ringer” rung so terrifyingly true. Because never before has the lifeless body on the medical examiner’s table been her own.