The Sister in Law (1975)

She Helped Her Husband Destroy His Brother By The Most Immoral Act Imaginable

Robert 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.

• Release Date: 1975-04-25
• Runtime: 1h 25min
• Production Company: Loose Reel Productions
• Production Country: United States of America
• Director: Joseph Ruben