丹妮因姐姐及父母意外自杀而日渐崩溃,男友克里斯为了安抚丹妮而邀请丹妮与他的好友来到瑞典的一座偏远村庄参加了一个当地的夏季活动,以令她䆁怀姐姐及父母身亡的阴影。 但活动却接二连三地发生怪事,而事情也朝着暴力、诡异的方向发展着,因此他们决定探索这里去解除疑惑。却发现这些美好的丰收背后与他们所信仰的宗教有关。事情的发展亦令丹妮的心理阴影日渐扩大,众人的情绪亦开始兴奋及崩溃起来,陷入分裂的局面⋯⋯逼迫着他们做出最终的抉择:居留或献祭⋯⋯
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...