Once Upon A Crime Once Upon A Crime

Marie Hilley: The Woman Who Became Her Own Twin

Jun 29, 2026 · 51m

Summary

This episode revisits the case of Marie Hilly, a woman who poisoned her husband and daughter with arsenic before fleeing justice. Hilly spent years evading capture by reinventing herself under multiple aliases, even convincing others she had a twin sister who was actually herself. The story details her elaborate deceptions, eventual arrest, and a final escape from prison during a furlough.

Topics discussed

Introduction to Marie Hilly and her chaotic life Early life, marriage to Frank, and financial troubles Frank Hilly's mysterious illness and death Marie's spending spree and strange police complaints Manipulating Calvin and poisoning daughter Carol Discovery of arsenic poisoning in Carol and Frank Ads for Talkiatry and Whisker Litter Robot Marie's arrest, bail, and dramatic disappearance The nationwide manhunt and Marie's manipulative tactics Reinventing herself as Robbie Hannon in New Hampshire The elaborate twin sister 'Terry' deception FBI investigation and Marie's eventual capture Trial, conviction, and imprisonment Escape from prison and death in the woods Conclusion, credits, and final advertisement
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