叶云知本是富家千金，却作为家庭主妇，任劳任怨，照顾丈夫女儿，但却遭到二人的看不起，将她当保姆使唤，随意打骂。叶云知患上乳腺癌。重病垂危，却遭到女儿冷漠无视。叶云知离世，巨大的不甘让叶云知重生，这一次她只想为自己而活。。High school teacher Mary Stauffer and her eight-year old daughter, Beth are held captive for 53 days by an obsessed former student. Based on a true story.。