Murder in New Hampshire: The Pamela Smart Story (1991)
Pamela Smart knows exactly what she wants and is willing to do anything to get it. She is fed up with teaching, and her marriage offers little excitement. Looking for a way out she applies for a job at a local TV station. When her dreams of fame are dashed by rejection, she seduces 15-year-old Billy, one of her students. Pam challenges Billy to prove his love for her by getting rid of her husband. The stakes heat up with a huge insurance policy on her husband's life.
One night, Nancy Lyon awakes in pain and dies shortly after--poisoned with arsenic. Her family immediately suspects her husband Richard, who left her temporarily the year before because of an affair. Nancy's brother is especially keen on getting her children away from the suspected murderer. All evidence points against Richard, but in court Richard surprisingly presents proof that his wife had depression, so perhaps she killed herself. Or is this "proof" just fake? Depicts an authentic case.