Vegas, City of Dreams

Why was this movie made? I watched it from beginning to end and couldn't come up with a satisfying answer to this question. Four sisters are set to reunite at their father's house in Las Vegas to celebrate Christmas together, but one of them turns up dead and the other three decide to try and find out who did it (something which we know all along). There is barely any mystery, or action, or suspense, or genuine eroticism in this flick (but there is one "mad scientist" who seems to have jumped in from another film). The presence of some good-looking women at least makes it marginally more watchable than it would have been otherwise, but it's still a waste of human effort, financial resources and a viewer's time. (*1/2)