In the Kingdom of France from 1640 is the old with his body ailing Cardinal Richelieu, powerful man under Louis XIII, faced with the machinations of his tipped designated successor, the Marquis de Cinq-Mars.。以野村宗弘的漫画《海蕴》为原作的本作品的舞台是社宅的阳台。因丈夫工作的关系从广岛来到东京的主妇中山麻衣子,每天都在等待因工作而忙碌的丈夫的晚归。在这种情况下,和麻衣子住在隔壁房间的丈夫的上司·二叶一,在隔着一堵墙的阳台上反复对话,缩短了距离。。