Wang (Nick Cheung Ka Fai) is the only son of airline tycoon Pui (Paul Chun Pui). He comes to know Hung (Sunny Chan Kam Hung) by chance and they become bosom friends. Hung's elder sister Ming (Amy Kwok Oi Ming) and her neighbor, Man, (Gallen Lo Ka Leung) are fated against each other. Man is fond of gambling and loses all of Ming's savings! What's worse, Ming is abandoned by her fiancée because of Man!

On the other hand, it is discovered that the real son of Pui is Hung instead of Wang. Hung's mother Mei (Suet Lei) was raped and got pregnant by Pui. Mei was so poor that she couldn't provide for her own son Wang and was forced to switch the babies. Wang was then brought up by Pui. After the revelation, Wang swears to get back and he unscrupulously tries to do away Hung. He even betrays his lover Yin (Jessica Hester Hsuan)! Fortunately, Hung's friend Wah (Ada Choi Siu Fun) helps and supports him all along. Can Hung manage to outwit Wang?