Matthew and Ma Da were once known as the world's best detective team. They worked together in the Dali Temple and captured countless murderers, but they never caught the "first killer of the Jin Kingdom". This time, after receiving a mysterious invitation, Matthew and the detective Tong Jiulang came to Qianli Qiufeng Villa to solve the mystery of "the treasure of the Jin Kingdom". Also invited were: Bai Duo, the best master of Qing Kingdom who was famous for solving cases while drunk, Lao Guya, an expert in metaphysical investigation, Su Qin, the head of Modern Building, the mysterious detective Hao Yunlai, and Chunfeng, the owner of a famous restaurant in Qing Kingdom. Everyone was quite curious about the massacre of Qianli Qiufeng Villa in one night, and they were even more eager to get their hands on the legendary treasure. As the employer showed up, the purpose of this trip was gradually revealed. What was waiting for everyone was a carefully planned poisoning incident...