I found a show called Hell Girl. I've only found the live action version but it's a interesting show. Basically if you hate someone enough and find the right website at midnight exactly. You can receive a doll with a string around it's neck. If you pull the string the person who has your hate will be dragged directly into hell. Regardless of what kind of person they were. Good or bad. The price you'll pay is that when you die you too will be dragged into hell never getting a chance at heaven. I'm trying to find the anime because it's really good. Anyone know where to find it?