Poisoned by Love: The Kern County Murders (1993)

Steve Catlin was known as a real lady-killer. But it's his new bride's mysterious death that causes his former wife, Edie Ballew, to question how accurate that nickname really is. With little more than a hunch and the help of an out-of-town detective, Edie secretly pieces together clues that reveal her cunning and smooth-talking ex-husband as a cold, methodical killer.