Undercover Hidden Dragon (2006)

Fat is a loser in work, and even in the triad gang. Ordered by another gangster, Fat attempts to assassinate the leader of the opposite gang. His mission, undoubtedly, ends in a fiasco. Yet this failed attempt hooks him up with his former puppy love, who is now the wife of mysterious gangster Wind. Meanwhile, when Fat is working at a cyber cafe with his buddy Chu, three young and hot policewomen arrive and think that Fat is a missing undercover cop who suffers from amnesia...