The Hong Kong Police placed 1000 undercover officers in the various Triad groups in their efforts to bring down the criminal organization in Hong Kong. After one undercover officer’s identity is discovered and he is killed, the pressure is put on one gang, suspicious of each other and everyone around them. Betrayal, deceit and murder bring this group of ‘brothers’ into a collision with the law, and each other.

Wong Kam-Kwei, a gang boss on the decline, overseeing bathhouses and karaoke bars, falls for a small restaurant owner, Mei. He begins to help her business, and learns that Mei is already in love with Leung, a member of his gang. He’s also like a brother to Kam-Kwei. When a rival gang hoping to steal his territory kills Leung, the only thing left for Kam-Kwei to do now is to protect Mei and avenge Leung.

In this prequel to Mou gaan dou (2002), Chan Wing Yan has just become an undercover cop in the triads while Lau Kin Ming joins the police force. Both the triads and the police find an enemy in a rival crime boss.

A melancholy story about the love between a woman and a man who live in the same building and one day find out that their husband and wife had an affair with each other. More and more the two meet during their daily lives as they determine that they both don’t want to be lonely in their marriage.

Jun arrives in Hong Kong from mainland China, hoping to be able to earn enough money to marry his girlfriend back home. He meets the streetwise Qiao and they become friends. As friendship turns into love, problems develop, and although they seem meant for each other they somehow keep missing out.