Four mismatched and contentious Hong Kong couples consider swapping partners but realize they're happier as they are.
Stanley Fung Shui-FanLau Ting Kin
James Wong JimBluffer Jim
Andy Lau Tak-wahLau Pei
Wong JingDried Pork
Lawrence Cheng Tan-shuiLo Kar Ling
Christopher Chan San-HiuYo
Shing Fui-OnChow Si Pak
Sharla Cheung ManAuntie Man
Chingmy Yau Suk-ChingChing
Vivian ChowMan Man
Wanda Yung Wai-TakTak
Sandra Ng Kwan-yuCocktail waitress at disco
Charlie Cho Cha-lee
Felix Lok Ying-Kwan
Dennis Chan Kwok-San
