Tung's fiance Tat Ya passed away in an auto accident. Tung takes a vacation in Hong Kong to keep her mind off of the matter. In Hong Kong, Tung encounters Ka Bo, a man who looks exactly like Tat Ya. Ka Bo originally was a cop, but because of guilt over his girlfriend's suicide he chose an undercover assignment to keep himself numb. After their encounter, Tung's romantic persistence begins to melt Ka Bo's icy heart. Unfortunately, on a mission, Ka Bo falls into his superior officer's trap...