Autumn 1933, Shanghai. It was getting late, and the wind from the Huangpu River blew across the Bund with a moist breath. The stone roads along the river shone faintly under the lights. This city carries the intersection of countless histories and dreams, is a hotbed of conspiracy and desire, and is a stage for crime and justice. In this bustling and confusing city, there are many unknown secrets hidden.
Zhu Kaiwen, one of the most outstanding private detectives in Shanghai, was standing in front of a mansion shrouded in thick fog on this night. Here, once was the mansion of a wealthy businessman, but now it has become the starting point of an unsolved mystery.
He was wearing a black gown, with deep eyebrows, looking through the fog towards the mansion door. At this moment, an emergency call from the police station echoed in his mind.
"Mr. Zhu, we have another case that you need to handle. The former business tycoon you are familiar with - Song Zhilin, his wife suddenly disappeared. She left a scrawled letter with vague content, except for one sentence that makes people shudder: 'If you see this letter, please believe me and find the truth.'"
