1923, Shanghai Beach.
The evening breeze blew gently, and ripples appeared on the water surface of the Huangpu River. Shili Foreign Market is brightly lit. The night in Shanghai is the soul of the city, flashing with colorful neon lights. There are dazzling entertainment and luxurious life here, as well as dirty sins and entangled conspiracies.
And in the center of this chaotic and prosperous city, stands a mysterious detective-Luo Liang.
Luo Liang is young and handsome, wearing a straight tunic suit. There is always a hint of indifference in his eyes, as if he has already seen through the hustle and bustle of the world. He did not come from a well-known family, but he became the most famous private detective in Shanghai with his keen observation, extraordinary reasoning ability and unconventional way of handling cases. While many know him as a master at solving complex cases, his background is as mysterious as the person he is.
That night, Luo Liang stood at the intersection of Nanjing Road, looking at a restaurant under the neon lights on the corner. It is one of the most famous red light districts in Shanghai, called "Baillou", and it is also a place frequented by many romantic figures.
"Inspector Luo, let's go see that woman." His attendant Chen Lizhong whispered in his ear.