In City S, Province H, the famous entrepreneur Wang Hui was found dead in a luxury villa, and a thrilling mystery unfolded.
Zhang Hao, on the surface is a small owner of an adult products store, but secretly he is a private detective. He unexpectedly receives a mysterious package, and the diary and letters inside involve him in a dangerous game. The criminal police captain Li Ming led his team members to carefully investigate the crime scene and did not let go of any clues. He was resolute and courageous and had a strong sense of justice. Reporter Lin Yue relied on her keen sense of news to travel around and investigate, bravely and fearlessly digging for the truth.
As the investigation deepened, Zhang Hao discovered that the diary might be related to Wang Hui's murder. However, the intrusion of strangers puts him into greater crisis. At the same time, Li Ming and Lin Yue are also working hard to find clues in their respective fields. They gradually discovered that there was a huge mysterious organization hidden behind them, which seemed to be planning a terrible conspiracy.
Zhang Hao cooperated with private detective Lin Feng and encountered many obstacles in the process of searching for the "Shadow of the Night". He was monitored by a mysterious organization, clues were destroyed, and he was constantly hunted by men in black. Li Ming's investigation was hindered at every turn, and key witnesses disappeared or changed their confessions. Lin Yue also faced danger during the interview and received an anonymous threatening letter but still persisted.
They continued to explore in the predicament and found clues to the "Land of Shadows" from the mysterious basement, but were attacked again by the mysterious organization. In the crisis-ridden city S, can they solve the mystery and stop the conspiracy of the mysterious organization? Everything is full of unknowns, and the road to breaking through is full of mist.
