22-year old secretary Kazuko first bumps into Tamaki on the way back from work. Tamaki is crawling along the sidewalk on crutches at a snail's pace, and stumbles into the young audiotypist after apparently having trouble with an ill-fitting shoe over her cast. After helping her back to her feet, Kazuko follows Tamaki back to her apartment, the two of them barely exchanging words. Once in Tamaki's room, Kazuko is dispatched on an errand to fetch some beer... Their game begins..

13-year-old Sachiko is about to encounter the most difficult moments in her young life. Her father abandons her and her mother attempts to commit suicide by slashing her wrist. Her teacher, whom she relies on heavily, leaves for northern Japan to take another job. Other students start to gossip about Sachiko and her former teacher. Sachiko then drops out of school and attempts to find herself.

内向羞涩的日高拓也（水桥研二 饰），暗恋同样隶属北绫高中剑道部的美丽少女北原纱月（つぐみ 饰），由于羞于启齿，拓也只能对着纱月的随身物品和相片自渎，以解相思之苦。因偶然机缘两人确立恋爱关系，不过却因为纱月发现拓也偷录自己小便时的声音而导致恋情破裂。
分手后，纱月很快便和剑道部前辈植松正一（草野康太 饰）相恋。孤独的拓也此时就像被抛弃的小狗一般，远远注视着纱月，而纱月似乎也从中体味到虐待的快感，从肉体到精神恣意折磨着拓也。他们畸形的爱情越走越远……
改编自喜国雅彦同名漫画作品。