After his divorce Li Wei is enthusiastic about being a private detective. He and the other three colleagues of the detective office, Jie Jiefu, Wang Chunrong and Feifei, do their best. Young woman Liang Biyan is planning to catch her husband's adultery while planning to build a love nest with a young taxi driver; trying to catch the third in order to obtain property compensation. Ms. Xiong Wei hopes to use this opportunity as a springboard for wealth; Liu Shuangliang, a middle-aged man with a successful career, secretly investigates the privacy of Jiao Xie Kong Xiaolei and counselors. However, the results of the investigation made him feel embarrassed and ashamed...