Undercover

After reverting from undercover police in the triad, Ken always feels that his colleagues all treat him with a bias. Ken prefers to take drugs to evade his pressure. Ah Fai, the drug dealer, is the only friend that Ken can pour out his unhappiness. In an incident, Ah Fai had killed the police officer in order to protect his drugs with the presence of Ken. To avoid getting himself into any trouble, Ken makes a big mistake to destroy all the evidence by burning out the car. But he forgets his most important witness – Ah Fai. However, the result of continuously covering his mistakes are pushing himself to convict an irreparable sin.......