Four carefree lovers in Hong Kong enjoy their youth while danger looms on the edges.

Hong Kong, Hong Kong is the story of a young woman, Man Si Sun, who has arrived illegally in Hong Kong from mainland China, and Kong Yuen Sang, a young man who is a gambler and wannabe boxing champion.

Connie Chan Po-chu's character's father was killed by the triads, leaving behind two daughters. The elder sister makes a living as a singer at a nightclub, and is sometimes threatened by triad members. The younger sister (Connie Chan Po-chu), who knows karate, becomes an assassin who punishes villains.

Mysterious Heroes centers around Lau Tien, master of the deadly 13-Sword Style. Thrown into prison by a group of jealous enemies, the 13-Sword Style is rarely spoken of, let alone seen, until 20 years later, when a second swordsman going by the name of Lau Tien proves to be the world's second 13-Sword expert. Action-packed martial arts chaos ensues when the enemies of the original Lau Tien vow to destroy his successor.