在这部我活着因为我爱你剧情片中,本片叙述在二次大战时，法国被德纳粹占领时所发生的故事。
40岁的铁路工人朱利安，生活在这样的时代，母亲因父亲于一次世界大战中阵亡而存有阴影，朱利安只好逃避现实，过着行尸走肉的日子。
直到一天，其于检查铁轨时发现一张纸条写着“我活着，因为我爱你……莎拉”的纸条。从此展开查访工作。
朱利安首先拜访莎拉的父母，还因此结识莎拉三岁的儿子友友，提柏特一心寻母的单纯和天真一点一滴感染了朱利安，两人逐渐成为忘年之交，让朱利安最后不顾一切，带着友友一起寻访莎拉，就凭着一张照片……
本片以二次大战为背景，但丝毫看不见战争的血腥气息，反而以温馨喜剧的手法来呈现，就像是一首清丽小诗呈现在观众眼前。
Occupied France. A young woman is shoved into a car by Germans, then loaded into a boxcar... At the Bussières station, a railway worker, Julien, hears voices inside one of the sealed boxcars of the stopped train. A note slips through a crack. "I'm alive and I love you. Sarah." Julien visits the address on the note and finds a family of Hungarian Jews: two grandparents, and Sarah's son Thibault, age 4. Julien offers to help with forged papers. They give him Sarah's diary for safekeeping. Later, when he returns, he finds the house ransacked, the grandparents gone. Julien takes Thibault home. His girlfriend Lucie senses something is wrong. She's right; Julien has fallen for the personality he finds in Sarah's diary...
我活着因为我爱你。
