Xu's father passed away. Xu Dinggui (played by Andy Lau) who was in the United States returned to Hong Kong at the invitation of his uncle to inherit the inheritance. Xu Dinggui has a half-brother Xu Dingfu. Dingfu is very dissatisfied with this brother who came to divide the family property. It happened that his uncle asked Dinggui to work in the company and asked him to perform well in order to successfully receive the inheritance. In order to keep the wealth for himself, the hypocritical Dingfu deliberately recruited three famous bad friends, who became friends with Dinggui and taught him bad things. Unexpectedly, these three bad friends not only did not teach Dinggui bad things, but the four of them became good friends. When they learned of Dingfu's conspiracy, they decided to join forces to deal with the despicable Dingfu.