I love Halloween, and waiting for it sucks eggs, so this is the perfect way for me to count down the days until the best holiday of all time is here.
Day 1 - Share a great horror anime to start off with!
I've talked about Elfen Lied before, but this is just too fitting not to mention again here. It's really messed up, psychologically and physically. People get killed almost constantly, and (seemingly) innocent little girls get eviscerated. It's all about trauma and torture and what that can do to a person's mind.
I've also heard awesome things about the manga, but I haven't read it yet.