很久很久以前，有一个叫雷·派的男孩，他会把破旧罐头压扁后放入鞋垫，让自己看起来更高一点。某一天，他谋杀了两个女孩。四年后，探长查理·席林打算将这个凶手绳之以法。同时，雷·派也在犯罪的道路上越走越远。

Well-intentioned, eternally bumbling Ernest P. Worrell accidentally releases an evil demon from its sacred tomb. As the demon flexes its power and goes on a ruinous rampage, good-guy Ernest tries to step in to save the town from mass destruction. Trouble is, a 200-year-old curse has scared Ernest stupid, and that means hilarity all around! So, kick back and let the laugh-ridden adventures begin.