- HD 1080
- Runtime: 84m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Jake Helgren
- Stars: Andrea Bowen, Lydia Hearst, Brando Eaton, Diora Baird, Ryan Carnes
- Production_studio: The Ninth House, Lifetime
- Slogan: Sisters aren't forever.
- The Psycho Sister-In-Law is featured in the top rankings of 2020
- #79 in Top Crime Movies of 2020
Haley and Nick Downes are a happy, successful young couple pregnant with their first baby, but when Nick's father dies unexpectedly, his estranged sister Zara suddenly shows up to town with a diabolical plan in store to make the baby and their father's fortune her own.
