Two women start living with a man who lives alone.The women introduce themselves as sisters looking for their long lost father and they start to seduce the man. Actually, these women are a serial killing duo who only target men who live alone. In the end, the man loses his life. While they are celebrating, a boy calling himself the man's brother, appears in front of them one day. He looks and sounds just like the man but has a completely different personality and he's nothing like the two women has ever seen before.

《25岁的女高中生》本作女主角名鸟花是正在四处求职的25岁女性，某天她突然接到亲戚的委托，对方竟让小花代替从不上学的堂妹进入校园？！经过伪装后，25岁的“女高中生”成功潜入学校，没想到却被另有企图的帅哥教师蟹江亮人盯上了

極限状態の中で壊れていく親子の愛を描いたサスペンス。さやかと母親・聖子は、セイゴと名乗るレイプ魔に監禁される。義理の母娘であることを知った彼はさやかの実母・麻宮も拉致する。陵辱され続ける中、3人の精神は次第に狂っていき…。