在结婚16年并育有四个孩子之后，贝蒂·布罗德里克的大律师丈夫决定离开她，去寻找一个年轻的女人，而他和这个女人有过婚外情。贝蒂被他的背叛所伤，对他的法律专业知识感到无助，她开始了一场破坏公物和言语攻击的运动。她的愤怒吞噬了她，最终导致了可怕的暴力行为。

After sixteen years of marriage and four children, Betty Broderick's high-powered attorney husband decides to leave her for a younger woman with whom he's been having an affair. Hurt by his betrayal and feeling helpless against his legal expertise, Betty begins a campaign of vandalism and verbal assault. Her rage consumes her and ultimately leads to a terrible and violent act.