The film tells the story of a bizarre murder case in Taigu County during the Ming Dynasty, where constable Du Xing follows the trail and finds Lu Xuan, whose memory only lasts for one hour, and uncovers a hatred between Lu Xuan and Wei Hu, a wealthy local businessman, for killing his wife. As Du Xing digs deeper into the case, the love between Lu Xuan and his late wife Liu Yue two years ago emerges, and Lu Xuan's identity becomes confusing.

During the period of the Republic of China, the reclusive descendants of Guanshan Taibao were ordered to investigate a case and solve the mystery of the "Nine Pavilions" of the Qianji Ancient Palace hidden under the mine disaster.

During the reign of Emperor Taizong of Tang, the Celestial Empire flourished. Jin Wenshan, the national teacher of Fuyu, has been coveting the prosperity of the Tang Dynasty for a long time, so he deliberately set up a difficult situation that would endanger the national fortune of the Tang Dynasty. Chang'an City seems to be peaceful, but many bizarre and weird incidents have occurred one after another.

In Longyun Town in the early years of the Republic of China, it is said that after the town discovered a treasure, strange things gradually occurred and young girls were killed in their homes one after another. Under the pressure of the mayor, Captain Lin (played by Pang Jingfeng) of the patrol team decides to team up with Ji Lianying (played by Qian Xiaohao), a "righteous man in the rivers and lakes", and a death row inmate in order to find the real murderer and guard Longyun Town.

There is a giant sinkhole in Guangxi called the Eye of the Underworld. According to folklore, it is the door to the Yin and Yang Realms. What's more, it is rumored that the ancient book "Long Guan Lu" containing strange recipes from past dynasties is hidden in the tiankeng. Ten years ago, during an expedition to the Eye of the Underworld, the entire expedition team headed by exploration expert Zhang Xiaotian died here. Ten years later, Zhang Xiaotian’s son Zhang Feng received a special express delivery, and the story unfolded...

During the period of the Republic of China, a heavy rain trapped the opera troupe who was going to cross the river to sing a famous event in Laogou. On a night of thunderstorms, there were murderous bandits and unidentified patrols who were sheltering from the rain with the troupe... A group of people with their own ghosts were all closely related to the fox wife incident fifteen years ago...