Spenser takes up a seemingly open and closed cold case at the behest of a street-wise teen-age girl, who believes her mother's murderers went free. As Spenser digs deeper into the mystery, he finds a much more dangerous and complex mystery than he bargained for. When fourteen-year-old Mattie Sullivan asks Spenser to look into her mother's murder, he's not completely convinced by her claim that the police investigation four years ago was botched. Mattie...