HK businessman Kiu doesn't have time to woo a girl. On a trip to Saigon, he offers financial help to poor girl Shun's (very troubled !) family if she'll come and live with him. With a sense of duty but no love, she agrees, too timid to even tell boyfriend Lik just after losing her virginity to him. Love fails to blossom between Shun and Kiu in HK, and Kiu starts to drink heavily. Sandy, Kiu's luscious secretary takes advantage and gets it off with him in the gym and digusts Shun in the process. Shun gets drunk and is picked up in a bar, nearly raped, and rescued then befriended by a fellow Vietnamese, a photographer, in what is clearly a setup. Turns out Sandy is behind this ruse as well, to get Shun out of the way and have Kiu all to herself. But things don't go according to anyone's plan. Will Shun give up Kiu and his money to go back to Lik ? Will Sandy hold her nerve and push ahead ? Will the guys Sandy paid to set up Shun have their way with Sandy instead ?

In Thailand in the 1950s, Detective Au Wei is shot to death by Cha Tin-Hung in a raid because of Cha's involvement with black market diamonds and jewelery. Wei's daughter Chun Chun swears revenge, helped by Wei's friend Yeh Tai-kor, a professional con-man.

A serial killer is loose in Hong Kong, murdering hostesses from high class night clubs. As punishment for their flaky style and lack of discipline, two young policewomen are assigned to work undercover as hostesses to catch the sadist. While solving that crime, they discover who's behind some of the city's drug trade. In trying to halt this enterprise, which they undertake without orders, they must face the crime lord's Japanese hit woman.

Genji Nakamura and his partner Michiko Nishiwaki are thieves for the notorious Red Army terrorist organization in Japan. After pulling off the jewelry heist of the century in which dozens of people get killed, they are now planning to use the jewelry they've snatched to buy an arms cache.

Lam, a cop approaching 40 but without much accomplishment, always wants to achieve something memorable before his retirement. He is obliged by his sister to find a decent Chinese girl for his nephew, Baffalo, who is an "American Born Chinese". But Baffalo has an eye for a sweetie, Ellen, who has accidentally witnessed a murder. The incident gets Lam, Baffalo and Ellen being involved in a ruthless underground arms smuggling ring, wich sends the killer to eliminate them.