Christmas in Boston brings horror rather than good cheer when a woman's body is found dismembered in a crime scene that leaves even hardened cops queasy. Doctor Maura Isles is assigned to the case, but soon another brutal murder takes place: a woman has been mutilated and murdered on Beacon Hill, near the home of the director of the Mephisto Club. This is a clandestine society whose subject is the study of evil -- and its agenda is to confront it in its most unadulterated forms. As Detective Jane Rizzoli becomes involved, it's quickly apparent that both women (no strangers to the bloodiest extremes of human cruelty) are up against something which is close to a distillation of the purest evil.
This is the list of characters that appeared in the book, in order of appearance: