In the chaotic world of the concession, the lights and shadows are blurred, but murderous intentions are hidden. Su Manqing, a lady from a declining aristocracy, became a typist for a foreign company, but she harbored revolutionary ideals and secretly passed on information. A secret message and a bizarre murder pushed her into the center of the storm. She was forced to join hands with the cold-blooded Detective Gu Yanchen, and through step-by-step thrilling investigations, she explored the truth behind family hatred and national danger.
Gu Yanchen, Inspector Bingshan of the patrol house in the concession, looks cold on the outside, but his persistence for justice burns in his heart. He wandered among all forces, vowing to tear apart the hypocritical prosperity veil of the concession. When his investigation intersects with Su Manqing's secret mission, the two go from doubting and testing to fighting side by side, and a secret love arises in troubled times. However, when it comes to personal revenge and national justice, should we abandon the individual to fulfill the greater self, or should we repay the debt with blood and tooth for tooth? When the truth emerges, what they have to face is a conspiracy that is enough to overturn half of Shanghai!
