The story takes place in the early years of the Republic of China. A murder occurred in a small tavern. Lin Jiyao, the son of squire Lin Ziqing, was found dead in the bed of Zhenniang, the owner of the tavern. The biggest suspect was the owner Zeng Jiaju. Tang Chongtao, the governor in charge of the case, listened to Butler Lin's testimony and convicted Zeng Jiaju. However, Zeng Jiaju refused to accept the verdict. He insisted that Lin Jiyao seduced ZhenNiang first. When he broke into the room, Lin Jiyao was already dead and ZhenNiang's whereabouts were unknown. Lin Ziqing secretly spent a lot of money to bribe Tang Chongtao, although Tang Chongtao also held the truth of the case...