Man works as a clerk in a shipping company. His life is truly non-eventful and dull, until he meets the beautiful but highly arrogant Karen. By day, Karen is a two-bit host of a home shopping network. When the sun is down, she frequents clubs and discos to fill her time and search for company. Man's affection towards Karen is obvious, but she thinks of him as nothing more than a friend, someone whom she can always rely on though not someone she will care for in return...

A man becomes a cop in order to take down the police superintendent who may have killed his father, and that of a vengeful Triad boss.

Inferior gangster Flying Dragon has a bad habit of gambling, he thus offends the three great gamble deceivers. Luckily his younger cousin, Roy, who comes back from America is extraordinarily lucky, he can win every round of the game and saves Flying Dragon. Flying Dragon hence brings Roy to Mahjong casino to earn money for him. Roy observes the rivalry between two Mahjong geniuses Hua San Yuan and Ge He Qing by chance, he witnesses the fate of them - one turns to be insane and one becomes bankrupt, and decides not to snatch the reputation of "The King of Mahjong". Though Roy has no desire to seize the fame, his good luck elicits the worry of aggressive Mie Luo who then plans to harm Roy.

Mr. Ho, "King of Gambling", got rich by gambling and is the leader of the Hong Kong Mahjong industry in the 1950's. He has three wives, two sons and one daughter. On the surface, the wives appear to be living in harmony but they actually compete against each other for the family's wealth. Since all three know Kung Fu, they sometimes have a martial arts showdown during dinner! Their fighting intensifies when Mr. Ho brings his love child, Ah Fai back home. Mr. Ho loves him very much, but his wives and other sons want him gone. Mr. Ho knows he is getting old, so he suggests that each of his sons to manages a Mahjong club for a period of time. Whichever one can get the best results will be the heir to his fortune.

In McDull, the Alumni, our protagonist has grown up. He is no longer the little boy who banters with his mates at school. How he wishes he could just go on bantering all day long with his mates at the renowned Flower on the Spring Field Kindergarten. But that is not to be. Like all grown-ups, he has to grapple with harsh reality. McDull and his mates are scattered all over the place. Each one of them has to find his or her own path. In each of their hearts, they know they have failed. Meanwhile, life goes on in the kindergarten. Someone strums a guitar and the pupils chime in to the song: Puff the magic dragon, lives by the sea… A dragon lives forever, but not so little boys. With hindsight, McDull believes this could well be the maxim of the Flower on the Spring Field Kindergarten alumni.