Goodbye Mr. Cool (2001)

Ekin Cheng stars in this gritty triad action drama as Dragon, a talented former hitman who has reformed and is now a waiter at a blue collar cafe. However, when his ex-girlfriend becomes the queen of the Underworld, she becomes determined to entice him back to a life of crime. Resistant at first, Dragon gets pulled back into the crime world as a violent gang war erupts.