《如果和母亲一起生活》讲述的是1945年8月9日，美国向日本投下原子弹。就读医科大的青年浩二（二宫和也饰）在毫无征兆的情况下死于非命。广岛长崎原子弹事件的三年后，一位母亲在终于决定放弃儿子还活着的希望的时候，在家里看到了三年前去大学上课就再没回来的儿子。由此，影片交错讲述了儿子、母亲以及本应成为儿子妻子一直未出嫁的町子的回忆和现实生活。整部片子将视线聚焦在普通的一户人家战争前后的日常生活，没有惨烈的战场的刻画，却又无处不弥漫着战争的硝烟。整部片子，单独抽出每一个小小的段落，细细品味都具有极强的催泪效果，可导演偏偏将快乐的回忆与痛苦的感受交错抛给观众，并且让男主每次都嘻嘻哈哈地出场，各个事件也只是点到为止。这大大削弱了观影的沉重感和催泪指数。

"If you live with your mother" tells the story that on August 9, 1945, the United States dropped an atomic bomb on Japan. Koji (played by Ninomiya Kazuya), a young man studying at the University of Medicine, died without warning. Three years after the Hiroshima and Nagasaki atomic bombings, when a mother finally decided to give up hope that her son was still alive, she saw her son who had gone to university three years ago and never came back. As a result, the film interweaves the memories and real life of the son, the mother, and Machiko, who was supposed to be the son's wife and has never been married. The whole film focuses on the daily life of an ordinary family before and after the war. There are no depictions of tragic battlefields, but the smoke of war is everywhere. In the whole film, every small paragraph is taken out individually, and it has a strong tear-jerking effect, but the director just throws happy memories and painful feelings to the audience, and makes the hero appear on the stage every time. , the various events are just to the point. This greatly weakens the heaviness and tear index of watching movies.