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.

Edith returns the abandoned items from Mui's house to its original senders after the death of the famous Cant-pop diva, Anita Mui in the late 2003. It revives five close fans' collective image and memory of Mui.