In the modern city "Jinguang City", the folk suspense reasoning team "Foghorn Investigation Team" has gradually emerged. In their independent capacity, they assisted in investigating a series of complicated suspense cases, including disappearances, serial murders, financial fraud, etc. They were questioned by the police and attracted public attention. In each case investigation, the past and emotional struggles of the team members gradually emerge, friendship and trust grow through the test, and betrayal and madness are also lurking among them. As the case gradually reveals the social darkness and power struggle behind it, the team encounters external threats and internal rifts, and constantly chooses between the truth and interests. In the end, the team faced the most difficult ultimate mystery: behind the series of cases, there was a huge conspiracy related to the fate of the members, and all members had to make the most difficult choices in their lives.
