Zhao Ze is a police officer who already has a beautiful girlfriend Zhang Meng, while his childhood friend Xiaowei is about to get married but has always liked himself. Zhao Ze rejected Ziaowei for the sake of brotherhood and loyalty to Zhang Meng, but who knows, that day, Ziaowei was killed. All the accusations and fingers are pointed at himself, the distrust between brothers and the suspicion of colleagues, leaving Zhao Ze in a dilemma. Just when Zhao Ze is in jail, Zhang Meng uses the pen fairy to force the real killer to show up and bring him to justice, clearing Zhao Ze's name and giving an explanation to the deceased.