"Pool King" detailed plot introduction: Yau Yi-Kiu (Cheng Siu-Chow饰), a former pool genius, once bet with his friend, using his girlfriend as the wager. In the end, after the girlfriend found out about this, she angrily married Yau's opponent. This event caused Yau to lose his one true love and receive a major blow, thus being unable to play pool anymore and subsequently retiring from the pool arena. Years later, Yau encounters the son of his old girlfriend, Kam Tze-Hum (Duncan Tong饰). Yau realizes that Tze-Hum has a great talent for playing pool and plans to take him as an apprentice, but is opposed by Yau's daughter Yau Ga-Cham...