影片改编自罗伯特·金梅尔·史密斯1984年出版的同名童书，故事围绕一个小男孩的“卧室保卫战”展开。
瑞克斯（布鲁斯·威利斯 饰）和好友弗兰克（迈克尔·切克利斯 饰）在执行一次行动时出现意外，弗兰克因受重伤而丧失了部分记忆。瑞克斯和弗兰克一起通过种种线索还原了真实的犯罪现场，并找到了背后的真凶。
两名科学家试图阻止一种突变，这种突变在前一年被超级月亮触摸后将人变成狼人。
It follows Taylor Pherry, who is given a mission from God Himself: to tell his family's stories and inspire his community. What he doesn't know is that the Devil has plans of his own.