Mei finds Wong and holds, the gun at him right away. When struggling, Wong seizes the gun and by accident injures Mei who then loses her consciousness. Scared, Wong decides to run away. Before he leaves, he wipes off all evidence and makes Tsing appear guilty of it. When Mei regain her consciousness, she suddenly comprehends everything and shoots herself. Seriously injured, Mei goes into a coma. Tsing becomes the-suspect and is suspended. convinced that Tsing is innocent, Wai, ignoring his seniors' objection, tries hard to clear him of the charge. Making use of the drugs at hand, Wong threatens Sung Tim to help him escape, Tim pretends to yield and takes him as his man. In fact, Tim is making use of him to frame Tsing. Finding out that Mei is harmed by Mok, Tsing thinks that Wai keeps things from him. Discontented that Wai tries to crack the criminal case by all means, Tsing disputes with him……