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The Sister in Law
She Helped Her Husband Destroy His Brother By The Most Immoral Act Imaginable
1975 · 1h 25m · 3.4 on TMDB
RRobert and Edward are brothers involved in a web of adultery and deceit. They share Edward's wife and his mistress and a mission to deliver a package of jewels across the Canadian border, but the mission turns out to be deadly.
