Chan Yiu-hing (Simon Yam) is an expert driver. He works as a parking clerk in Wan Chai with his three friends Hung (Wan Yeung-ming), Chung (Roy Cheung) and Da-di (Lau Ching-wan). Da-di is addicted to gambling and is beaten up by Wan Chai's Ah Yeung (Ben Lam) for defaulting on his gambling debts. Hing and his friends steal Ah Yeung's car to pay off their debts, and the two sides have since developed a grudge. Hing is obsessed with a woman named Miu (Chan Miu-ying) who he met once before. After meeting again, the two finally get together, and Hung and Ah Miu's friend Ah Fen (Chan Ka-ling) become lovers. Hing feels that he is weak, so he gets involved in watching the scene and collecting debts. His power quickly expands, and he is invincible. Many people who are dissatisfied with Hing's growth design to pull Hing into the drug business, but Hing refuses. When Hing goes to Macau to participate in a race and has the idea of quitting, the assassin's footsteps are approaching step by step... This film is adapted from the experience of Chan Yiu-hing, the Tiger of Wan Chai.