In the ancient city's 'Weiyang Tea House', shopkeeper Xu Weiyang and his partners were accidentally involved in a bizarre murder case during their leisurely and funny daily business. While the turmoil has not subsided, mysterious cases have occurred one after another - although each case appears strange, there are human secrets hidden behind it. Several protagonists use their respective expertise to jointly investigate, and gradually discover that the behind-the-scenes mystery actually points to the unsolved teahouse murder case many years ago. People's hearts are unpredictable, and the truth is getting colder. The bonds and growth, humor and tears of several people complement each other in the continuous solving of the mystery. In the end, they uncovered the real culprit, cleared the names of the family and the wronged, and the teahouse returned to peace.
