Meredith Baxter stars as Betty Broderick, a homemaker and mother of four, in this drama/thriller about her true crime case where she murders her ex-husband Dan (Stephen Collins) and his second wife Linda (Michelle Johnson). After 16 years of marriage, Dan leaves Betty for a younger woman named Linda, leading to a downward spiral of anger, grief, and ultimately violence. The film chronicles the events that led up to this tragic act, a true crime story that shocked the nation in 1989.