"Crazy Stone" tells a story: when a handicraft factory in Chongqing, a mountain city, was rebuilding a public toilet, it found a priceless jade. In order to alleviate the embarrassment that the factory didn't spend money for eight months in a row, under the pressure of construction developer Feng Dong and his deputy manager Qin, Director Xie decided to hold a jade exhibition in Guandi Temple near the handicraft factory. In order to prepare for this exhibition, Bao, as the only security supervisor in the factory who attended the police school, undertook the security work of this exhibition.

Just as Bao carefully deployed security measures, the TV news broadcast such a news: there were many burglary cases in the mountain city, and the thieves used the moving company as a cover to sway through the city and repeatedly succeeded. The culprit of burglary is knife elder brother. When Doug and his two younger brothers, Heipi and Xiaojun, were afraid of meeting the traffic police because of burglary, and it was difficult to cheat women by playing with double reed, a mysterious man flying from Hong Kong was targeted by Doug. Immediately, Brother Dao and Heipi played a trick and snatched the suitcase of the mysterious man who had just left the airport.

This mysterious man named Mike is an expert invited by Manager Qin at the request of real estate developer Feng Dong. The purpose is to get the jade found in the handicraft factory. When he opened the suitcase, Brother Doug found that the newcomer was a colleague. Combined with the news on newspaper and TV about the discovery of jade in handicraft factory, Doug inferred from his many years' experience of walking in rivers and lakes that the newcomers came for jade. Soon, my brother Doug took his younger brother to live in a guest house near the exhibition held by the handicraft factory in Paris at night. Coincidentally, there is only a thin wall between knife elder brother's room and the "condescending" bag.

From this day on, Bao studied with Sambo on this side of the wall how to prevent it. Brother Dao and two brothers across the wall are thinking about how to break through. At the same time, Mike is also secretly investigating, and director Xie's son Xie, a young man who claims to be engaged in human body art research but is doing idle work, also has the idea of using jade to please those beautiful girls.

Around jade, there are stories of coincidences and adventures, such as "stealing the beam to replace the column", "getting it as easy as blowing off dust", "exchanging the truth for the fake" and "returning the perfect jade to Zhao". At the end of the story, surprisingly, Feng Dong and his manager Qin, who tried their best, both died in the process of using and being used. After Mike found that the person who hired him had been killed by his own hidden weapon, he finally fell into Bao's hands. Bao was praised for bravely catching the international thief. Brother Dao and his brother are like rats crossing the street, running wildly on the circular viaduct in the mountain city.