The story of two sibling thieves named Pretty Eyes and Slanty Eyes. When the two make the mistake of lightening the wallet of a mob assassin who just got paid for a hit, they find themselves in dire trouble.
Lau Ching, a Mainlander with an incredibly powerful right arm, arrives in Hong Kong to find his cousin. He befriends with a drifter named Handsome, and a martial artist girl named Mandy. In order to woo her, Ching participates in a fighting competition in hopes of winning a $10 million prize, and must defeat his love rival, Wai, in the ring.
Valentino is a mediocre con artist who crosses paths with Kwan, a fellow con artist. Together, they impersonate various people and create numerous schemes to make money. Meanwhile, gangsters are making a scheme of their own.