Joyce Aparo seemed to be the perfect single mother. She doted on her sixteen-year-old daughter, Karin, encouraging her musical ability and lavishing affection on her. But behind closed doors, Joyce was a terror. For thirteen years, she beat Karin savagely, kept her away from other children, and demeaned her relentlessly. When Karin met the troubled yet brilliant Dennis Coleman, the two fell head-over-heels into lustful infatuation. But Joyce disapproved--so she had to die. On August 5, 1987, Joyce's body was found under a bridge near the Connecticut-Massachusetts border.

The police investigation soon dragged her horrific treatment of Karin into the open, and the teenage lovers became the prime suspects. Dennis eventually confessed to the murder, testifying that Karin begged him to kill her mother. But Karin had a very different story to tell. Was she manipulating the police the same way she manipulated her former boyfriend, or was she an innocent victim?