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Sibling Rivalry poster
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Sibling Rivalry 2026

“Which twin would you die for?”

10m HorrorThriller
IMDB ↗

When identical twin sisters Diana and Marilyn swap places as a harmless Christmas prank, Diana's husband acts on a secret murder plot and kills the wrong sister. As he mistakes his wife for his victim, she must play along to survive long enough to escape.

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