One day, Jenny discovers that she doesn't love her boyfriend - a Japanese triad leader - any longer; therefore, she walks away with a bag of money to secure her life. In reality, that bag of money is the triad leader planning to trade in a secret diary with a notorious thug, Kit; however, just to find that the money has gone. In the meantime, Tak is a HK police officer on vacation, and spots Kit in Okinawa. Undercover as a ruffian himself, Tak approaches Kit and would like to arrest him at any given time...