Seven normal people who don't know each other are inexplicably locked up in a mental hospital. In order to escape, these seven people have tried their best: Ma Rui (played by Wang Zijian), a talkative lawyer who can "revive the dead", Xiao Naien (played by Jin Shijie), a history teacher who is eloquent but cowardly, Li Zheng (played by Zhou Yiwei), a "carefree" reporter, Han Mushan (played by Liu Liangzuo), a veterinarian who only wants to go home to see his daughter, Yang Meng (played by Li Hongchen), a taxi driver with a bad temper, Lili (played by Mo Xiaoqi), a beautiful and smooth public relations, plus An Xi (played by Wan Qian), a strange woman with amnesia. These seven people tried every means to prove that they are not crazy, and did a series of ridiculous things to escape from the mental hospital, but all of this was recorded by the surveillance cameras in the mental hospital...