Gao Jin (played by Chow Yun-fat) came to Hong Kong to fight a gambling demon. Unexpectedly, as soon as he arrived in Hong Kong, he was chased by Brother Nan (played by Yang Zelin). As a result, he fell into a trap and lost his memory. Fortunately, Dao Zai (played by Andy Lau) and his girlfriend Zhen (played by Wang Zuxian) rescued him. They took Gao Jin home to recuperate. They found that Gao Jin was proficient in gambling and was very excited...