The disappearance of Riani's doll makes Riana come to Elodia's dormitory. The dormitory is often carried out by female students, who perform ritual games using a mirror, namely Bloody Mary. However, this game revolves around the terror that harms Elodia's students. Riani's innocent doll is the mastermind. Riana, who is unraveling the mystery, is trapped in the middle of a condition to bring Riani home and find the answer to the innocent terror of her favorite doll.