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: April 25, 1975
- Runtime: 85 minutes
- Production countries: United States of America
- Original Title: The Sister in Law
- Original Language: English
Genres: Drama
Actors: Will MacMillan, John Savage, Anne Saxon, Meridith Baer, Frank Adonis