A man and his sister-in-law plot to kill his wife, but things don't turn out quite the way they planned.
- Release Date: October 30, 1974
- Runtime: 71 minutes
- Production countries: United States of America
- Original Title: Stepsisters
- Original Language: English
Genres: Thriller
Actors: Hal Fletcher, Bond Gideon, Sharyn Talbert, Byron Wolfe, Sandy Pinkard