Can someone give a great anime and at the same time a scary one?

Horror Anime you say?? :3
I don't find these anime scary at all (some) but they do fit the horror category. :

a. Shiki
- the story takes place in a particularly hot summer in the nineties, in a small quiet village called Sotoba. A series of mysterious deaths begin to spread in the village, at the same time when a strange family moves into the long abandoned Kanemasa mansion.

this anime makes you think who is really the monster, the Shiki? or the humans?

b. Another
- Class 3-3 of Yomiyama is cursed and the main character tries to solve what this curse is, what does it do and how it affects them.

more of a mystery than a horror. Nice twist at the end though. XD

c. Higurashi no Naku Koro ni
- plot too hard to explain. :3

d. Elfen Lied
- Lucy is a girl who is a "Diclonius" a new species similar to human beings (but different at the genetic level and notable due to physical abnormalities, particularly a pair of short horn-like protrusions) being experimented on has escaped and caused a bloody (like bloody!) havoc. She is then found by Kohta and Yuka, two cousins studying at a local university.

Hmm... two humans found a girl who just wreaked havoc (a bloody havoc though they don't know this) and decides to take her in. This would be interesting.

explaining plots is not my thing so... sorry if this summary of mine didn't make sense or didn't interest you.

<3

If you want a scary anime, look for anything in the "seinen" demograph, especially the old 80s anime movies. Monsters, demons, nudity, dismemberment, sword fights, gun fights, magic fights, possessed children, ghost children, cannibalism......

I would recommend Shadow Star Narutaru, but the anime leaves off on a cliffhanger that's resolved in the manga.

I wouldn't call it scary, but Serial Experiments Lain is quite a mindf**k.

There's Perfect Blue; the anime the Black Swan movie was inspired by.

the most cpeepy scary anime i have ever seen is

when they cry

its got blood and i would say is just that git so blood sick for me (every one jusst goes crazy

this trailer is only a little bit of the horror

scary i would have to say Monster i'm no good at descriptions so i will have to say you can watch it and find out

You may want to try Paranoia Agent:
It is kinda hard to describe (really, if you watch you will get why) but it is good.Sorry I put an image now :(. I'll try later.

Akame Ga Kill!
It's about Night Raid's bloody and gory fight to bring an empire's corruption to a halt.