Chu Wai Tak (Anita Mui), a timid and shy office lady, is embarrassed by her ex-boyfriend by enrolling her in a singing contest. Tak is in trouble as she can't sing when someone else is round. She asks King (Dayo Wong) a Karaoke fanatic, to train her and make her confident in performing in front of others. The time is coming, King decides to give Tak the final "confidence boost" session... Anita Mui must overcome stage fright by learning from the “King of Karaoke” in this musically-inclined comedy.

Anita Mui
as Chu Wai Tak

Dayo Wong Chi-Wah
as King Wong

Benz Hui Siu-Hung
as Stephen

Wong Yat-Fei
as Siu Sai Wan Andy Lau

Chapman To Man-Chat
as Karaoke contest security

Kristal Tin Yui-Nei
as Kika Kwok

Vincci Cheuk Wan-Chi
as Yau Tong Elva Siu

Chin Ka-Lok
as Tim

Hau Woon-Ling
as Passerby frightened by Tak's stare

Wong So-Bik
as Olivie