The Mephisto Club

The Latin word is scrawled in blood at the scene of a young woman?s brutal murder: I HAVE SINNED. It?s a chilling Christmas greeting for Boston medical examiner Maura Isles and Detective Jane Rizzoli, who swiftly link the victim to controversial celebrity psychiatrist Joyce O?Donnell; Jane?s professional nemesis and member of a sinister cabal called the Mephisto Club.