I want to read something dark psychological any suggestions

Save me, shokuryou jinrui

Ikenie touhyou

I like these:
Interview with a murderer
http://www.mangago.me/read-manga/uruwashiki_shuen/

And this one is very twisted, but also quite violent/brutal (contains rape). So only read it, if you are okay with that:
http://www.mangago.me/read-manga/kiseki_to_amedama/

Follow, sorry I don't trust the follow button

What would be your reccommendation for dark psychological yaoi (no women, no kids)?

Oh yeah also the manga Metamorphosis

Every manga made by Harada. Seriously

http://www.mangago.me/read-manga/bastard_hwang_youngchan/

Thank you very much