Tomonaga Akiyuki and his wife Yu have been married seven years. Akiyuki is a graphic designer, and is quite happy in his work and private life. One day, he attends the wedding of his younger half-brother Ichinose Ryo. However, Ryo runs off with a young woman who appears at the wedding, leaving the bride Jumonji Azusa at the altar. Akiyuki bows his head and apologizes to Jumonji, and this is the prelude to a growing intimacy between them. Is it love, or is Jumonji after revenge? And what do Yu and Ryo think as they become aware of this relationship? Akiyuki and Yu, it seems, are headed for divorce. Further complications arise for Akiyuki and Yu when Akiyuki’s close friend Shunsuke and lawyer Reiko, advising on divorce, get involved.

結婚7年目の夫婦を取り巻くオトナの恋愛模様をコミカルかつシリアスに描くラブストーリー。本木雅弘と瀬戸朝香が夫婦、本木を翻弄する小悪魔的存在を奥菜恵が演じる。また佐々木蔵之介、要潤、羽田美智子、サエコらが脇を固める。

男と女の予期せぬ偶然は、様々な業界・人へと飛び火していく。そこには兄弟の微妙な確執も潜んでいた…。孤独で切ないながらも、なぜか滑稽で軽妙に思えてしまう恋の物語。男と女、仕事と恋。先の読めないストーリー展開から目が離せない！