You guys, we have definitely talked about this here before, but I don't see it here. Maybe it was in the shout box... anyway, this is a really funny old episode of South Park, and you can see that it was inspired by Pet Sematary, the short story The Monkey's Paw, and maybe a little The Beast Within (the book, by Edward Levy, not really the movie). It takes a while to get everything set up, but the last... the last third or so is really good. Cartman is sort of an evil mastermind in this, as he sometimes is. I'm always a fan of those episodes.