Based on an urban legend of the most haunted university in Taiwan. Rumor has it that during construction, the architect disrupted the school’s harmonizing Feng Shui and turned it into a beacon for supernatural entities. Years later, in an attempt to test their AR game on dark summoning rituals of the dead, they unknowingly unleash evil spirits on the world. 传说中，文华大学位于阴阳交界之地，当年设计师将建筑物设计成镇煞用的「逆八卦」阵形，名为「大忍馆」，希望能用此镇煞阵形来困住孤魂野鬼以免伤人，没想到大忍馆因此陆续传出众多校园怪谈：不只有人搭电梯却误闯阴间、还有人撞见在教室跳舞的女鬼、更有许多学生在晚上听到幽幽的歌声⋯⋯ 就读文华大学的连裕婷（王渝萱饰演），自从三年前哥哥（施柏宇饰演）在校内发生意外后便昏迷不醒至今，裕婷一直想完成哥哥用毕生心血设计的AR游戏。然而当她与同学们在进入最后实测阶段时，众人却开始发生离奇诡谲的灵异事件，而裕婷也在无意间发现哥哥昏迷不醒的原因⋯⋯