The Thorpes were the perfect couple: young, attractive, and ideally matched. But when the Thorpes are found dead in their tasteful Flagstaff living room after having committed a double suicide, alarms go off in the executive offices of Eden, Incorporated, the worldwide matchmaking phenomenon that had originally brought the two people together. Eden guarantees its customers just one thing: lifelong happiness. Christopher Lash, former FBI forensic psychologist, is brought in by Eden to perform a quick-and quiet-investigation. But as Lash begins his "psychological autopsy," another of the ideal couples commits double suicide. Lash's investigation soon veers into the many hidden layers of Eden, Inc., a labyrinthine world of technology and psychology that inadvertently may bring Lash face-to-face with his own demons.