昭和28年 夏… ある田舎町で主人公である14歳の少女 幸子は父親の政吉と2人で暮らしていた。 ある日の夜… 政吉はいつもの晩酌をしていると 側で寝ていた幸子に目をやる… パジャマが少しはだけた状態の幸子 を見て政吉は酔った勢いで娘の幸子を 強姦してしまう… その日の夜を機に政吉の強引に迫る 行動がエスカレートし、とうとう幸子の 眠っていた狂気が目覚めてしまう… Summer of 1950... A 14-year-old girl who is the main character in a rural town. Sachiko lived with her father, Masakichi. One night... Masakichi was having his usual evening drink. I looked at Sachiko who was sleeping next to me... Sachiko with her pajamas slightly uncovered Seeing this, Masakichi drunkenly took his daughter Sachiko. I'll rape you... Taking advantage of that night to forcefully approach Masakichi. The behavior escalates and finally Sachiko's The sleeping madness awakens...