在东京某个安静的角落,居住着一对平凡的夫妇。身为丈夫的梅田信次(江口洋介 饰)是一名干劲十足的房地产中介,他终日奔波,不辞辛苦,全心全意支持妻子的事业和理想。妻子美奈是某国际知名指挥家的女儿,然而她却无法取得令父亲满意的成绩。日常里她依靠自家开设的钢琴教室为生,每天不得不挤出笑容应付难缠的孩子和家长。夫妻二人始终没有生养孩子,因为美奈无论如何都想朝着世界大赛做最后一次冲击。这一天,一个脏兮兮的男孩闯入梅田家的庭院,此前他曾遭受父母的囚禁和虐待。即使男孩被送往福利机构,却不知为何又返回梅田家。 在丈夫的鼓动下,美奈决定收养这个钟情于她琴声的男孩……Umeda Mina (Ono Machiko) is a pianist whose father is a famous conductor. She has set her sights on winning an international piano competition. However, she has faced countless setbacks and this is her last chance at the age of 35. Mina has been married to her husband Shinji (Eguchi Yosuke) for 10 years, but they do not have children for some reason. One day, a filthy boy with an impassive face breaks into their garden. It turns out that he has been abused and he is put in a home. But several days later, he appears in their garden again. Believing that it is fate that brought him to their house twice, Shinji secretly starts to look up on child adoption...