On a weekend getaway at a rundown cabin in the woods, Jason, a cautious teen, his crude best friend Colin and his fearless older sister Summer are forced to work together, grow up and save their hard partying parents from their predatory neighbour (Lauren Holly) who is intent on feeding them all to her undead family…

本剧改编自Jon Krakauer同名书籍，将讲述一系列事件，最后导致了居住在犹他州盐湖谷郊区的Brenda Wright Lafferty（黛西·埃德加-琼斯 饰）和其宝贝女儿于1984年被谋杀。
　　在Jeb Pyre警探（安德鲁·加菲尔德 饰）调查Lafferty家庭内部事务时，他揭露了一些不为人知的秘密：耶稣基督后期圣徒教会（又称摩门教）起源，和坚定信仰带来的暴力后果。作为一名虔诚的摩门教徒，Pyre发现的东西让他开始质疑自己的信仰。