她们是亲姐妹,却分列命运的两极:姐姐3岁就瘫痪在床,需要父母不离左右地伺候才能生存;妹妹却是顶着光环的北大在读博士。姐妹俩的人生迥异,她们之间却存在着一条命定的逻辑:姐姐的厄运是妹妹存在的理由,妹妹今天的奋发只为出席姐姐未知的明天。1983年7月,只有3岁的范开群由于一场医疗事故成了智力低下、终身只能在床上度过的重残者。为了女儿将来能有一个依靠,父亲范万秋与妻子商议再生一个孩子。 They are pro-sisters, but the fate of the poles are divided: my sister was paralyzed at bed 3 years old, parents need to wait around to survive; sister is a halo under the Peking University doctoral. Sisters two different lives, there is a destined logic between them: my sister’s doom is the reason for the existence of the sister, sister’s hard work today only to attend the sister of unknown tomorrow. In July 1983, only 3-year-old Fan Kaiqun became a mentally handicapped, disabled and disabled for the rest of his life because of a medical accident. In order to have a daughter to rely on in the future, his father Fan Wanqiu and his wife discuss the regeneration of a child.