Song Zile, a master of solving crimes with a sense of humor and wit, was involved in the whirlpool of strange cases due to a family grudge. With the help of Liu Ruyan, the trio used their wisdom to solve cases large and small in the capital, breaking the rules and revealing the truth. Gradually, he meets his rival Bai Yunsheng, and begins one battle of wits after another. The case involves officialdom, Jianghu, and folk anecdotes. There is both a hilarious case-solving process and a gripping life-and-death battle. As more mysteries are revealed, Song Zile and others gradually get closer to the truth about the family injustice, and they also grow up in laughter and laughter, and finally close the loop in a humorous but touching way.