Detective Cao Xu is both smart and brave. His wedding is scheduled for a week later, and happiness is just around the corner. However, the body of a young woman who had been missing for several months was discovered in the suburbs. Her arm was branded with a mysterious sun pattern. Soon after, several more women disappeared. When the case was difficult and there was no clue, an undercover informant suddenly received information. Cao Xu went to the appointment but was in a desperate situation. His comrade died tragically. In order to arrest the murderer, he snatched the USB flash drive and the car lost control and fell into the abyss.
I thought my life was over, but when I opened my eyes again, Cao Xu traveled through the Republic of China and became the down-and-out young master Dong Xiaoxiao. At this time, he was in frail health, addicted to smoking, his family was in ruins, his parents were dead, he was burdened with gambling debts and his fiancée's family broke off the engagement, and his only sister was sold into prostitution. The gears of fate suddenly turn, and the lives of modern criminal police officers and the fallen young masters of the Republic of China are intertwined. Can Cao Xu use the criminal investigation wisdom of his previous life to solve the mystery of his life experience and change the tragic fate of Dong Xiaoxiao in this troubled Republic of China?
