当安雅搬到一个新城镇时，她发现自己有一个同卵双胞胎姐妹，名叫莎拉，但她们并不知道她们在出生时就分开了。但当安雅决定调查原因时，她很快就遇到了神秘的威胁。
鹤结贵乃（南琴奈 饰）是便利店的深夜兼职生，像往常一样打卡上班，一切都看似平静。可直到有人说了一句“4天前我收到了这个”，店里的氛围瞬间就变了味，一股诡异感扑面而来。之后每天都会有一张“神秘SD卡”送过来，跟着而来的，是便利店里一件接一件的怪事，越看越让人毛骨悚然。
A brilliant high school senior is counting the days until she can leave her abusive foster home behind for Yale. But her plans are interrupted when a mysterious new teacher with a sinister past becomes disturbingly fixated on her.
