一封没署名的遗书、一群看似无恙的学生，让中学老师郑Sir想起充满暴力与遗憾的童年往事。他亦面对妻子离别、父亲病危，同时必须找出企图轻生的同学，阻止悲剧重现。
本片改编自同名漫画，讲述了父亲被神秘的组织杀死的照朝，为了将99把“恶魔之钥”全部破坏，以父亲留下的话为线索继续着收集钥匙的旅程。赌上了伙伴们全员的性命，超极限的死亡游戏！与恶魔拼上性命的最终决战开始了！
Beneath the fake blood and cheap masks of countless haunted house attractions across the country, there are whispers of truly terrifying alternatives. Looking to find an authentic, blood-curdling good fright for Halloween, five friends set off on a road trip in an RV to track down these underground Haunts. Just when their search seems to reach a dead end, strange and disturbing things start happening and it becomes clear that the Haunt has come to them...
