Mainlander Nan moves to Hong Kong to earn a living by being a gambler and casino dealer. She meets up with her stuntman cousin Po and his horse-race gambler landlord Li and together, the three try to make ends meet in the gambling world. However, they stumbled upon a plot where greedy investor Fu Hon-San swindled the shares of his gambler brother Fun Hon-Hwa, whom befriended Nan, and, as a result, the gamblers band together in attempts to topple Hon-San.

Mainland Inspector Cheng Shih-Nan once again leaves the Mainland with her cousin Hsiou Sheng to tackle a Hong Kong-related murder. They get help from their Hong Kong brethren, including the brother of Wu Kei Kuo, and the race is on to find the bad guys! But there are still many mysterious portions of Hong Kong’s capitalist culture for Shih-Nan to explore, including the wonder of karaoke!