一个身体透支到极限的短跑运动员在生活和运动中面临着无法逃避的牺牲和选择。

一青姐妹来自台湾人父亲与日本人母亲（河合美智子 饰）结合的家庭，童年时代都在台湾度过。妹妹一青窈（藤本泉 饰）出生后一家人移居到东京，然而没有多久父亲就撒手人寰，独留母女三人相依为命。母亲每天都坚持亲自下厨，烹调女儿最喜爱的台湾菜。母亲的料理加深了家人间的羁绊，也为邻居亲友带来幸福。后来，母亲因病去世，在母亲病逝后20年，姐妹俩在母亲墓前知晓了妈妈的秘密，姐姐（木南晴夏 饰）因为某个念头的驱使，动身前往睽违已久的第二故乡台湾......

Ono’s work related destruction to interpersonal, often intimate, human relations. This element was particularly thought-provoking in ?Cut Piece?, one of many actions she did as DIAS [Destruction in Art Symposium]. Ono had first done the performance in 1964, in Japan, and again at Carnegie Hall, in New York, in 1965. Ono sat motionless on the stage after inviting the audience to come up and cut away her clothing, covering her breasts at the moemnt of unbosoming. ?Cut Piece? entailed a disrobing, a denouement of the reciprocity between exhibitionism and scopic desires, between victim and assailant, between sadist and masochist: and, as a heterosexual herselft, Ono unveiled the gendered relationship of male and female subjects as objects for each other.(source: Kristine Stiles,?Uncorrupted Joy: International Art Actions,? in: Out of Actions: between performance and the object, 1949–1979, Paul Schimmel (ed.), MoCA Los Angeles, New York/London, 1998, p. 278.)

本片根据真实人物改编。第一次来到西藏工作的老孔（宋洋 饰），急需一个翻译，机缘巧合下，找到了在内地读过书的久美（金巴 饰）。两个人从互相矛盾到彼此理解，最终成为了一生的朋友……