As a faithful young houseboy fully devotes himself to his spiritual duty, his teacher plans turning over his grandfather's mountain property to realtors for profit....

光天化日之下，一家三口人被素不相识的男子坂口秋生（丰川悦司 饰）先后杀害。不久后坂口自首，却在镜头前露出了神秘微笑。28岁的OL远藤京子（小池荣子 饰）经常受到同事的议论和支使，沉默寡言的她几乎没有朋友，也与家人的关系疏远。她偶然从电视上看到坂口被捕时微笑的画面，心中似乎有所触动，从那一刻起便开始四处搜集关于坂口的一切。被捕后的坂口面对警方不发一言，连他的辩护律师长谷川（仲村トオル 饰）也对其束手...