So you defeated Diablo...for the 3rd time. You thrust that soulstone into your skull in the first Diablo. That didn't turn out so well...then you smashed said soulstone at the Hellforge in Diablo 2. You thought you were done...and then a certain witch from Diablo 1 decided to give up her daughter to said Lord of Terror and you smote her too. So, now what? Well it looks like an angel decided to purge humanity and the only way you can stop him is with the Diablo III Can't Stop Death T-Shirt! Hey, don't ask me if that makes sense. I'm just a writer!