In the sixteenth year of the Republic of China, Jiangcheng was in turmoil, with warlords separatist rule, black and white intertwined, and people's livelihood turbulent. With Fang Jinnian at its core, the detective agency was called upon to do something in danger, and was successively involved in mysterious cases such as bizarre murders, disappearances, and espionage cases. Behind the scenes, multiple games involving politics, business, underworld, foreign forces, and underground parties were involved. Shen Ximeng investigates side by side with Fang Jinnian in order to seek the truth; Lu Wenbo struggles to balance between the government and the people, needing to investigate the case but also deal with pressure from superiors and society; Zhang Yuzhen uses multiple identities to seek the salvation of faith in troubled times; Yuan Haoran walks between black and white, never revealing his true heart. Because of the entanglement of faith, family affection, love, friendship and personal destiny, everyone peeled off the cocoons in layers of fog and crisis, and uncovered shocking secrets one after another. Each volume revolves around an important case, deeply depicting the era, and gradually revealing the huge conspiracy and complex human nature hidden behind the city.
