Higurashi no Naku Koro ni

title translated to The Moment the Cicadas Cry

Opening Theme
Higurashi no Naku Koro ni by Shimamiya Eiko
Ending Theme
why,or why not by Oshima Hiroyuki & Katakiri Rekka
[screenshots pending]
This is a rather popular title, currently airing on Japanese Television (dunno which station). Based on a popular, amateur created murder-mystery computer game, it is pegged as a Psychological Horror, according to ANN. That is, there’s mystery and gore, with cuteness for good cover-up measure.

Currently listening to the OP (same title), and from there (as well as the OP video of the anime) you can guess how it was categorized as such. Prepare to jump out of your seats, ladies and gentlemen.

By the way, it’s picking popularity after Haruhi Suzumiya no Yuutsu at YouTube. It’s a must-see, I guess. Search Result: Higurashi Search Result: Haruhi