#57 Poisoned Blood: A True Story of Murder, Passion, and an Astonishing Hoax by Philip E. Ginsburg

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Pretty, smart, and pampered, Audrey Marie Hilley grew up in a small Alabama town believing she was entitled to the best of everything. But marriage to her high school sweetheart, a cushy secretarial job, and motherhood were not enough to satisfy Marie, and she soon began to act out in troubling ways. Only when her husband, Frank, became sick with a mysterious illness, did it seem that she was ready to put someone else’s needs ahead of her own. The truth was far more disturbing.

If this were a work of fiction, I would've said the plot stretched credibility. The fact that this actually happened is amazing. The writer does a nice job providing clues along the way and insights into the people involved.