Director Xiao is a private detective who looks lazy but is actually very careful. He is born with a feminine and handsome face, and always speaks and does things with a bit of casual humor. In this third-tier town, the cases he took on were basically trivial cases - looking for cats, catching rapes, and investigating extramarital affairs. Life was uneventful until he took over an ordinary derailment investigation and accidentally got involved in a well-designed conspiracy.
The disappearance of the client's fiancée led Xiao Dong to the most powerful family in the city. The seemingly gentle and gentle rich second-generation love rival is against him at every turn, but he doesn't know that he is stepping into the trap he has set step by step. Xiao Dong uses his unique gentleness and delicacy to run his own small life - making coffee, raising meat, mediating family disputes for neighbor aunts, while quietly unraveling every plan of his opponent. When the truth comes to light, the person who thinks he is in control will eventually taste the bitter fruits he has sown.