在洛杉矶, 11岁的安娜·菲茨杰拉德寻找成功的律师坎贝尔·亚历山大，试图雇佣他从她的母亲萨拉那里获得医疗解放，萨拉希望安娜把自己的肾脏捐给她的妹妹. She tells the lawyer the story of her family after the discovery that her older sister Kate has had leukemia; how she was conceived by in vitro fertilization to become a donor; 和 the medical procedures she has been 提交ted since she was five years old to donate to her sister. 坎贝尔接受了无偿工作，而痴迷的莎拉决定去法庭强迫安娜帮助她的妹妹.