The Chief Inspector Lee took over the investigation of the case of a single police officer and criminal societies, the target person Crime Squad Detective Huang Shuxiong. Male, because to get the help of the underworld, breaking a lot of cases, but also received the benefit of the underworld illegal Ji Lee To collect Xiong et al incriminating. Male trespassing hide incriminating evidence, so Lee can not be hung such as rope of the law. Subsequently the new players Achang joined male wants to buy failed, but the Li I took the opportunity to take advantage of Chang male collection of incriminating evidence, in the end there is sufficient evidence to arrest, while the male committed suicide.