该影片是以真实事迹改编，是参照了1971年美国心理学家的一个实验「斯坦福监狱实验」。科学家们召集了一批普通老百姓，让他们来参加了这个特殊的实验。科学家让他们分成两个小组。一组是扮演狱警，而另一组则扮演囚徒。实验内容也很简单，就是让他们在监狱里一起待过两个礼拜。刚开始时，大家都是有说有笑，非常和谐。因为大家都认为这样的实验非常简单，只要互不干涉，和和睦睦便可以轻松通过。但好景不长，狱警们享有管理的权利，后面逐渐发展到滥用私权，拿犯人来发泄情绪。终于犯人们无法忍受这些疯子，由77号犯人带头掀起了起义，开始对抗狱警。最终，整个监狱陷入了瘫痪，场面逐渐失控混乱，一直到代表实验结束的信号灯亮起时，才结束了这场闹剧。

The film is adapted from real events, referring to an experiment conducted by American psychologists in 1971, the "Stanford Prison Experiment". Scientists gathered a group of ordinary people and asked them to participate in this special experiment. The scientists divided them into two groups. One group played prison guards, while the other group played prisoners. The content of the experiment is also very simple, that is, let them stay together in prison for two weeks. At the beginning, everyone was talking and laughing, very harmonious. Because everyone thinks that this kind of experiment is very simple, as long as they don't interfere with each other, they can pass it in harmony. But the good times didn't last long. The prison guards enjoyed the right to manage, and later gradually developed into abusing their private power and using prisoners to vent their emotions. Finally, the prisoners couldn't stand these lunatics, and Prisoner No. 77 led an uprising against the prison guards. In the end, the entire prison was paralyzed, and the scene gradually became out of control and chaotic. It was not until the signal light representing the end of the experiment was lit that the farce ended.