Marjorie Turner is suffocating. Her younger sister Jeanine has no ambition, and her eight-year marriage to Harry puts her in constant competition with his family (all doctors),with whom he too is competing for affections. One day she snaps while food shopping and beds a mysterious man who dies right afterward. When she forgets her wallet, a vertical-blinds salesman finds it and things really get complicated from there.
![Sibling Rivalry logo](https://img.fairfan.com/img/400x155/800/310/images/fanart/movies/logo/23lni3jm261g.png)
Sibling Rivalry
A frustrated woman's life gets even more frustrating once she gets into an affair with a man who suffers a fatal heart attack after their fling.