Cai Sanlang, the third-level arrestee of Chang'an Jingzhao Prefecture, was having fun, eating and drinking. On the pretext of hunting down the criminal thief Wang Yidao, he entered the Chunyue Tower private club to hang out with oirans. He happened to meet the murderer who committed an attack and injured someone. When Cai Sanlang was chasing him, he was captured by the other party., was rescued by Luo Youhuo, the Sixth Rank Inspector of Dali Temple.
Cai Sanlang is a dignified head hunter who is greedy for life and afraid of death, and is despised by Luo Youhuo. The two of them disliked each other when they first met.On the day of his 40th birthday, the famous painter Liang Zigai in Chang'an suddenly announced that he would auction his famous painting - the wall horse -, which caused an uproar.Unexpectedly, one night later, Liang Zigai was stabbed in the chest with a sharp weapon and died in the study. What was even more strange was that the woman in the painting actually came back to life.