Knowing the law and breaking the law

Mike (played by Daniel Wu) was born in a police family. Unfortunately, his parents died early and he lived with his uncle. He has always been regarded as a redundant person. Being a police officer in the police station is too hard, and he becomes a thorn in the side of his colleagues. The depression in my heart can only be relieved when I take a shower alone at the police station locker. An accident at work caused Mike to be punished, and the team leader Liu Sir asked him to take a vacation. Mike met Hongxing's eldest brother Ren Qingtian (Eric Tsang) by chance while playing video game consoles, and the two became close. Later, he meets Ren's wife Pauline (Guan Xiumei) by chance in a restaurant, and Mike is attracted by the beautiful sister-in-law. Liu Sir finally decided to let Mike be an undercover agent and lurk next to Ren, while Mike, who had been depressed all the time, had his own wishful thinking of getting ahead...