In July 1979, John And Diana Wanstrath and their fourteen-month-old son Kevin were found shot to death at their home in a fashionable Houston suburb. Despite the fact that no murder weapon was found on the premises, the Medical Examiner's verdict was suicide/murder committed by Diana. Homicide detective Johnny Bonds didn't believe the verdict and at the cost of his marriage, his physical and emotional well-being, he became obsessed with finding the truth.