Synopsis
In the sealed banquet hall of the Young Marshal's mansion, the second concubine, Gu Yan, suddenly died from poisoning. At the time of the incident, the doors and windows were tightly locked, with no one entering or leaving. The Young Marshal, the two concubines, and the butler were all considered suspects. Detective Ma Wen immediately began investigating the case. He first exposed the lies of the first and third concubines, who were trying to frame each other. Although they had grievances with t
