This film is based on the novel Bai Yutang: Blood Gold. Gold is always straight. One or two gold, how many lives? Bai Yutang, who has disappeared for several years, had to be a detective again because of the stolen 100,000 taels of gold, fighting with the sky, the ground and people ... Late at night after the rain, the Treasury of the Ministry of Finance was stolen, and 100,000 taels of gold disappeared, and the sergeant guarding the Treasury and a captain Feng Ruhai were killed. Song Renzong was furious and ordered Bao Zheng to solve the case within ten days. Bao Gong asked Bai Yutang to help solve the case. After analysis, everyone in Kaifeng found a suspicious gold selling den-Zhangji blacksmith shop. After analyzing the case, Bai Yutang suspected that there was a mole, and concluded that the gold theft was related to Princess Tongzhou and Zhang Han the Hamster.

It turned out that Zhang Han the hamster was a good friend of Feng Ruhai, while Lin Qiang, the comrade-in-arms of Shao Zongzi, was appreciated and promoted by Princess Tongzhou. After Shao Zongzi paralyzed Feng Ruhai, he joined hands with Lin Qiang, the magistrate of Yuanyang County, and brought twenty guards into the official warehouse, killed Feng Ruhai and moved away 100,000 pieces of gold. Shao Zongzi used Feng Ruhai's friendship with Zhang Han the hamster to accuse Zhang Han the hamster of stealing gold and killing people. When Bai Yutang discovered all this, they were covered up, Shao Zongzi and Lin Qiang died one after another, and Feng Ruhai's whereabouts were unknown. Finally, the case was solved, but only Wu Baijin's gold was found. ...

The gold was not found, and everyone involved was killed, so there was no way to find it. Bai Yutang found out that Princess Tongzhou had nothing to do with the case, and the suspicious wife Lin was also involved, which eventually led to it. It was by taking advantage of the death of the side princess that King Ning smuggled gold into the coffin and melted 100,000 taels of gold into the gold cart to hide people's eyes and ears, with the intention of rebellion. It turns out that Wang Ning is the mastermind behind the scenes. When Shao Zongzi died, no one could find the whereabouts of gold.