Key Crew
Director
Johnnie To, Wai Ka-Fai
Screenplay
Wai Ka-Fai, Joey O'Bryan
Producer
Wai Ka-Fai, Andy Lau, Johnnie To
Editor
David M. Richardson
Executive Producer
Shirley Lau Yim-Ngo
Keywords
police
hitman
competition
falling in love
housekeeper
agent