In 1925, Shanghai was in a precarious situation: foreign enemies were on the lookout, and all forces in the city were intertwined. Shen Muchiu's original intention was just to make a living, but a celebrity murder case caused him to be involved in the vortex of power and espionage. Gu Wenying investigates the truth alone, and turns from hostility to alliance with Shen Muchiu, using news, reasoning, and investigation to gradually uncover the mystery behind the incident. Zhou Huaijin wanders between the law and the black market, Cheng Zhiyuan is entangled in the justice of his family and country and personal grudges, Lin Zixuan runs around delivering letters in the dark night, and Xi Yunshu controls people's hearts with a pen that seems to be far away from the hustle and bustle of the world. Everyone carries feelings and secrets, and interacts with each other in multiple cases - from celebrities' property disputes, arms smuggling to disputes among underground intelligence networks, etc. - Connecting the ups and downs of Shanghai, the warmth and warmth of people's hearts, and the fate of the great era. The ten volumes gradually clear up the clouds and reveal the sun, until the end of the conspiracy and the trial of human nature. Multiple clues are interspersed and set off, and finally intertwined into a song about all living beings in the dark night of the Republic of China.
