Upon discovering that his estranged twin brother Lok has died, Joe's investigation of Lok's troubled past sends him to the world of underground boxing, where he suspects the opponent killed Lok during a bout. Sorely Joe finds himself unleashing his own animalistic instincts as he comes face to face with his brother's possible killer.
Brothers growing up together in the Sau Mau Ping ghetto finsd themselves involved in a web of revenge, misunderstandings, and betrayal when one of them becomes the witness to a drug deal.
During hard times in the Hong Kong film industry, an out-of-work actor talks a producer, writer, and an actor into making a movie together. They become gigolos to raise money for the production.
