The Future of Organ Harvesting

I like horror films, but I don't like just the really graphic torture stuff. There's that book by Kazio Ishiguru that was turned into film with Keira Knightley. He imagines this futuristic world where you can have a clone made of yourself. So there's you, and then in a parallel sort of place is your clone. And if organ failure is a thing, because then your person, your clone, you'll slowly harvest their organs for you,. Because they're a perfect match. But then of course they will, there's only so many donations you can make. Why not go through the normal works? It's probably countries where there isn't health care.