The story takes place in the early years of the Republic of China, a period when political power changed and social order was turbulent. Ji Shaorong was originally a descendant of a declining noble clan. In a murder case at a diplomatic mission, he was involved in a mystery involving multiple forces. Tang Xuening was born into a noble family and was suspicious of family secrets, so she became an investigation partner with Ji Shaorong. Police detective Zhao Yunkuan moves between the government and gangs, cooperating with the investigation but hiding secrets. Driven by Wu Yikai's reporter's clues, during the investigation of the case, multiple story lines such as family grievances, power struggles, gang assassinations, and emotional entanglements were revealed. There is a main thread behind each volume of independent cases, which jointly points to the shocking conspiracy deep in the old capital of the Republic of China. In the end, all the clues are intertwined, and everyone has to face the test of self-salvation, righteous choices, and the righteousness of their family and country.
