Sylvia Jackson was shot in the head and left for dead in a cemetery in Boston, her boyfriend lying dead a few yards away. She's in a coma for six weeks, and when she wakes up, she can't remember anything--until three months later, when suddenly she begins to recall details of the crime and the killer. Finally, Sylvia accuses her ex-husband, remembering what seems like incontrovertible evidence of his guilt. Enter Dr. Peter Zak.
Peter, the director of Pierce Psychiatric Hospital, quit acting as an expert on memory and crime for the Boston PD a year ago when his wife was brutally murdered by a killer he'd testified against in court. But when his old colleagues call and ask him to consult on this bizarre and seemingly rock-solid case of amnesia, he's hooked. It's Peter's job to determine how reliable her memory really is, and hopefully to use those memories to uncover what really happened that night in the cemetery.