Gao Jin (Chow Yunfa) came to Hong Kong to duel with a gambling demon. Unexpectedly, as soon as he arrived in Hong Kong, he was chased by Brother Nan (Yang Zelin). As a result, he fell into a trap and lost his memory. Fortunately, Daozi (Andy Lau) and his girlfriend Zhen (Wang Zuxian) rescued them. They took Gao Jin home for recuperation. They found that Gao Jin was proficient in gambling and were so excited that they wanted to use him to make a lot of money, but instead they lost money because Gao Jin was unstable. Gao Jin's wife was insulted and killed by his cousin Gao Yi after being drunk. Gao Yi then teamed up with Brother Nan to plot to murder Gao Jin, searched for hiding places everywhere, and went to kill him. While fleeing...