故事发生在1985年的上海,面临去北京大学报道,孙雨欣(剧雪 饰)的母亲突然因车祸撒手人寰,留下了三个未成年的弟妹,而这三个孩子都是母亲当狱警时收养的犯人的后代。雨欣放弃了上大学的念头,靠打工抚养三个没有血缘关系的弟妹,中间她还有一段短暂的婚姻。十年后,弟妹陆续长大成人,而雨欣也在考虑要不要嫁给一直帮助自己始终未婚的中学同学大暑(董勇 饰)。当年和她一同考取北京大学的田风(王同辉 饰))如今海外归来,交谈中得知雨欣多年来的不易,他帮助雨欣将“亲情树”系列服饰推向市场。雨欣原本想在新闻发布会上与大暑举行婚礼,不料节外生枝,发生了谁都想不到的一幕......。A noise is coming from the floor upstairs. Eunsu, hears this for over a month which causes uncontrollable anger to rise up. She gets eliminated again from a competition she had prepared for a long time. Eunsu decides to write her last piece with the theme of the noise between the floors and persuades her friend to help her follow and track the secret.。