This was one of the biggest flops in HK cinema in 2006 (apparently only making a few thousand at the box office though admittedly not a huge budget film) though it is maybe a bit unfair as its not that bad a film, indeed it is actually pretty good... in parts anyway.
It stars Candy Lo who plays an estranged twin who apparently buries her successful twin sister alive to take over her successful life. Crumbs!
The rich sister's boyfriend Eric Kot gets a bit suspicious though when his "girlfriend" wants nothing to do with him and acts totally strange. Bad Candy is assisted by Carl Ng who is the real evil mastermind behind the plot. Of course there is a twist, its not totally unexpected but pretty well done.
So all in all a decent film and worth seeing. Candy Lo pulls off two good roles for the price of one as the twin sisters have different characters. Indeed it is worth watching alone for the rather impressive athletic form of Michelle Zhang incidentally. She steals the scene fairly often, standing there silently. Hopefully she will get other film roles where she actually speaks.