Four mismatched and contentious Hong Kong couples consider swapping partners but realize they're happier as they are.
as Lau Ting Kin
as Bluffer Jim
as Lau Pei
as Dried Pork
as Lo Kar Ling
as Yo
as Chow Si Pak
as Auntie Man
as Ching
as Man Man
as Tak
as Cocktail waitress at disco
as Mr Kwan's Bodyguard
