For my second recommendation, I've picked an anime I am a big fan of, or at least the first season. Higurashi no Naku Koro ni, or Higurashi When They Cry.
Higurashi is a murder mystery based on the visual novel of the same name and is about Maebara Keiichi, who moves to the fictional Japanese village of Hinamizawa. He befriends a group of girls, Ryugu Rena, Sonozaki Mion, Furude Rika and Houjo Satoko, and joins their after-school club. After a while, Keiichi begins to discover disturbing things about the village's past. I won't go into spoilers territory, so do yourself a favor and check it out.
Oh, and, by the way. There are scenes of blood and violence involving minors, so if you don't like that kind of thing, try to brave it out, because it's totally worth it for the story. Also, yandere.

