After her sister dies in a car accident, Laci (Linda Purl) moves in with her brother-in-law, Richard (Linden Ashby), and helps raise her two nieces. The arrangement works well for a while, until Richard embarks on a new relationship. When Laci -- who has her own romantic interest in the handsome widower -- learns of his plans to propose to his girlfriend (Shannon Sturges), jealousy consumes her, and she'll do whatever it takes to tear them apart.