This film mainly tells the story of a cliff fall incident in the remote suburbs of Haibin City. The deceased is Jiao Wang, the boss of Buliang Technology Co., Ltd., and the suspects are seven employees of the company who came to camp together (Qian Rou, Ge Hao, Zhao Yan, Sun Ran, Gao Yang, Wang Hong, Ma Peng). The case happened on a deserted cliff, and the situation was complicated and there were many clues. When the case reached a stalemate, the criminal police captain Xin Siyuan decided to find another way to break the deadlock cleverly, and joined forces with the cyber police captain Zhang Hui to restore the truth in the form of a "werewolf killing". Uncovering the layers of fog, it was found that this cliff fall incident was not that simple...