Yang Baiwan (played by Chen Xixu) and his wife Ma Lilian (played by Gao Ye) jointly run a restaurant called Xiankelai. Ma Lilian's outstanding appearance and hot personality make Yang Baiwan feel insecure. He is suspicious all day long, worried that he will be cuckolded at some point. One day, Yang Baiwan saw Ma Lilian and a strange man in the same room. In anger, he beat the man violently, but was beaten up by his wife instead. Yang Baiwan, who believed that he had been betrayed, found the genius doctor Bi Jianxiao (played by Cao Rui) and spent a huge sum of money to entrust the latter to find a killer to kill Ma Lilian to relieve his hatred. On the night of the appointment, Yang Baiwan drugged Ma Lilian and left, but accidentally discovered his wife's innocence, and the killer had already quietly come to Ma Lilian's side. Anxious Yang Baiwan rushed home, but he didn't expect that what appeared in front of him was Bi Jianxiao's "corpse" and Ma Lilian who had fainted.