Looking for darker, more mature anime

No.9859036 ViewReplyOriginalReport
I'm not into anime such as One Piece, GL, Naruto, etc....
I'm more into things with mature and/or deep content, such as Paranoia Agent or Lain. Movies that show this include Perfect Blue, Akira, Paprika, etc.

Can anyone recommend me some dark and thought-provoking anime? Thanks in advance!