After being humiliated in front of a love interest, delivery boy Ho Kam-An seeks help from a retired martial arts master for self-improvement, unaware that he might actually be a fraud.

Stephen Chowas Ho Kam An
Richard Ng Man-Tatas Devil's Killer Tat
Christy Chung Lai-Taias Lily
Ben Lam Kwok-Bunas Master of Karate Tuen Shui Lau
Joe Cheng Choas Master Blackbear
Billy Chow Bei-Leias Taekwando Master
Leo Ku Kui-Keias Cafe Waiter
Wong Yat-Feias Cafe Boss
Vincent Kok Tak-Chiuas Ah Niu
Gabriel Wong Yat-Shanas Woo
David Chung