Twenty years ago, Dashan and Yoyo, who was the girlfriend of his brother Dajiang, had smoked dope on the verandah. Dajiang was so angry that he beat Yoyo up. She fell off the building, and the scene was witnessed by an ugly girl named Xiaoxian. Dashan is now a maverick lawyer who does lots of pro bono work. He is attached to the firm of his mentor, Chen Guo. Old Bao, a private investigator, and Alvin, a ruffian, often help him with his cases. His girlfriend, Sun Kaili, works in the same law firm as he does.