小有名气的翻译家浅生柊子（田中美佐子 饰）突然接到前夫的电话，得知对方即将因公举家搬往伦敦，而他们共同生养的女儿美羽（土屋太凤 饰）则因学业留在日本。12年前柊子因某种原因离开丈夫和女儿，现如今美羽对她有着深深的芥蒂。初次见面倒霉至极，母女互呛不说，二人还遭遇电梯事故，更由此离奇导致灵魂互换！为了瞒住周围的人，母女终于住到一起，柊子以女儿的模样按时上学，变成老太婆的美羽则承担起做家务、拿稿子的任务。借此机缘，美羽有机会接近一直以来暗恋的男孩元宫透（中川大志 饰），柊子也体会到久违的青春快乐。桃花期不期而遇，母女在灵魂互换期间似乎也加深了对彼此的了解……

　　本片根据唯川惠的原作改编。

47-year-old Aso Toko is asked by her ex-husband to take their 17-year-old daughter Miu under her care because he is leaving for an overseas assignment. Toko who had wanted to take custody of her daughter, has her long-cherished wish fulfilled and her old friend Suga Yohei is happy for her. However, Toko does not have the confidence to live with Miu who is now a high school student. Although Miu also has no intention of living together with the mother who had abandoned her, the two of them meet again for the first time in 12 years in order to have a discussion. On the very day that mother and daughter are reunited, Miu’s impertinent behaviour angers Toko, and they reach an agreement to live separately. However, they get trapped in the lift they took right after that and then the lift suddenly plunges. The shock from this incident causes their souls to swap bodies. As a result, the two of them have no choice but to live together.

12년 만에 재회한 47세 어머니와 17세 딸의 몸과 마음이 바뀌어 버린다. 생각지도 못한, 그리고 이해할 수 없던 서로의 세계에 속한 일상 생활과 인간관계들을 통해 여자로서, 모녀로서 다시 마주보는 어머니와 딸의 이야기