岸边野裕里(松隆子)在姐姐远野未笑的葬礼上,遇到了姐姐的女儿远野鮎美(广濑铃)。无法接受母亲亡故的鮎美,也无法打开母亲留下的最后一封信。裕里参加了要和大家报告姐姐往生的同学会,巧的是,她的初恋对象镜史郎(福山雅治)也来了,两人在一封封书信的联系中串接起三人当年的故事。。During WW II, a young German woman is separated from her family and imprisoned by the Nazis. After being freed she falls in love with and marries a German officer. When Berlin falls to the Russians, and her husband killed, she flees to America, carrying his unborn child, all the while not giving up hope that she will find her family, tied together by her mother's ring。