Ellie Cavanaugh was seven years old when her older sister was murdered near their home in New York's Westchester County. It was young Ellie's tearful testimony that put Rob Westerfield, the 19-year-old scion of a prominent family, in jail despite the existence of two other viable suspects. Twenty-two years later, Westerfield, who maintains his innocence, is paroled. Determined to thwart his attempts to pin the crime on another, Ellie, an investigative reporter for an Atlanta newspaper, returns home and starts writing a book that will conclusively prove Westerfield's guilt. As she delves deeper into her research, however, she uncovers horrifying facts that shed new light on her sister's murder. With each discovery she comes closer to a confrontation with a desperate killer.