Rookie policeman Shing (Louis Koo) grapples with right and wrong in this action-packed story about Hong Kong gangsters. Assigned to go undercover, Shing is so successful in playing the part of a gang member that he becomes right-hand man to gang leader Fei Ling (Andy Lau). Shing comes to respect Fei Ling and question his original motives, but the troubled cop must make a crucial decision before rival gangs and impatient cops move in for the kill.
as Fei-Loong
as Wong Chi-Shing
as Tong Man-Chun
as Tong Pau
as Fanny
as Ken
as Loong's mom
as Ma Wong
as Sam
as Big Head Man
as Judy
as Fa
as Superintendant
as Cole
as Loan Shark Ko