讲述了 一个潜伏于敌人心脏的我地下工作者与 日本侵略者斗智斗勇，最终破坏敌方阴 谋的故事。
When their mother is hospitalized in a car accident, Pim and Putt suddenly discover that they have a set of grandparents they've never known about. But a terrifying truth has long been hidden within the walls of their grandparents’ house, a truth that gradually reveals itself to Pim and Putt through a mystical hole, unleashing hair-raising horror on their family.
