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.
古天樂
as Tan
吳彥祖
as Tide Ho
譚耀文
as Mann
谷祖琳
as Sandy
駱應鈞
as Brother Chu
黃嶽泰
as Lao Wu
張國柱
as Ho Chuen
Phyllis Quek
as Tan's Mother In Her Teens
Wrath James White
as Arion
白鹰
as Mr Ying
Park Ju-Chun
as Mr Ying's Korean Boxer
Ron Smoorenburg
as Mr Ying's White Boxer
