William Cavanagh and Carmelita Lee are found dead in their home, both shot and tied up. Their bodies are discovered by Glen Kavanaugh after several days. A sawed-off .22 caliber rifle is identified as the murder weapon. Billy Kavanaugh, their son, offers a reward for information and vows revenge. After ten years, Lindsey Rose is identified as the killer, pleads guilty, and receives life sentences, while Cavanagh seeks justice for his father.