A detective living in Bangkok's Chinatown, whose parents had disappeared in the early years, had been longing to join the police force with his friend Feng Ze since childhood. However, he was unable to do so. Unwilling to do so, he became a private detective but could only pick up some petty thievesA small case that doesn't earn much money, has a poor reputation, and often cannot make ends meet. It relies on the support of the wind and rain. One day, A Tan's friend Fei Long entrusted him to investigate a woman, claiming that he was being pursued by her. CuriosityNext, A Tan discovered the woman's name as Mo Huixin based on the photo, but strange events occurred one after another while searching for relevant informants: people related to Mo Huixin died one after another, and A Tan was always the first discoverer