In the early years of the Republic of China, Wen Xiang, a girl who was charged with the murder of her family, joined hands with Wang Ya, the former top detective in Shanghai, to investigate the case with a passion for justice. They practiced justice step by step and solved the mystery of the strange case. However, clues led to an old unsolved case fifteen years ago, and the shocking secret once again set off a bloody storm. The murderer "Wuming" who was involved in the murder of Wang Ya and killed Wang Ya's best friend Zhou Ningfeng reappeared. The two sides fought openly and secretly many times. In the cracking of cases again and again, Wen Xiang and Wang Ya gradually approached the truth of the bloody case that year, and Wuming's true identity was beyond everyone's expectations... Adapted from the Kuaikan comic of the same name "Wuming Detective Record"