Devil Has Humanity (2009)

Zhao Xiaozhu is a policeman of the Drug Enforcement Department, he received a difficult and dangerous task. In order to arrest the big drug dealer Mr. Wei, who had been tracked by the police for many years, Zhao Xiaozhu pretended to be Zhang Sheng, a big drug dealer with the same appearance as himself, and went to meet with Mr. Wei. And unexpectedly found his bizarre life.