九州乡下发生一宗命案,疑犯柳田却坚称自己没有杀人。其妹桐子远赴东京,希望邀请名律师大冢为兄长洗脱罪名,奈何大冢对这单案件不感兴趣,柳田最后更被处死。桐子认为当日若非大冢拒绝帮忙,哥哥就不用枉死,于是她展开了惊心动魄的复仇计划。Kiriko attempts to hire a well-known lawyer to defend her brother's murder case. The lawyer turns Kiriko down as she cannot afford him. Some time later, Kiriko encounters the lawyer again, but this time it is he who needs her help.