Zombie patch for Sims 2?

oes anyone know where i could find a patch for the sims 2 that would allow me to make characters act like zombies? Not just the greenish hue they sometimes used to develop after beating death, but slouching and trying to eat people's skulls and possibly passing the zombieness on to any other character they bite (Sort of like how the vampires in Nightlife can make your own characters vampires).

Or if you know a good place for Sioms 2 patches in general. I grew bored with the game a while back, and am trying to make it fun again by making different scenarios.