A group of friends visit their old school for reunion. One of them proposes playing hide and seek using the Itchimatsu doll from Japan called Minako. The game of hide-and-seek Minako comes from the Japanese urban legend Hitori Kakurenbo, a hide-and-seek game with the ritual of summoning the soul using the doll. The cheerful atmosphere of reunion turns into a terrible experience. Not only life-threatening, but also testing the strength of their friendship.