The story takes place in a remote resort called "Misty Hidden Villa", which is shrouded in a year-round fog and isolated from the world. The owner of the villa is a mysterious rich man. He invited several guests who did not know each other, ostensibly to hold a private party, but in fact he hid an ulterior secret.
The protagonist is a private detective named Lin Shen, who is famous for his keen observation and unique reasoning method. Other characters include the owner of the property, several eclectic guests, and a taciturn butler, each with their own secrets and motivations.
Shortly after the party started, a series of bizarre events occurred in the villa, including the mysterious disappearance of guests and the appearance of strange messages. During the investigation, Lin Shen discovered that all incidents were related to an unsolved case ten years ago. As the investigation deepens, more clues and suspects surface, and the truth gradually gets closer, but danger also arises.
Concept: People's greatest fear is to face their hearts