psychological/mental:
false memories
at the end of the road (ermm psychological?)
murderer llewellyn's enchanting dinner invitation
paid (by fujoking)
black mirror
checkmate (lol not sure if this counts)
sign (not exactly psychological, but it's popular personally not a big fan)
stalker's game (not sure if this counts lmao)
not exactly psychological but it's horror with great plot pls read if you haven't!!! already :
dreadful night
Sooo i'm not sure if you'd be interested but I personally really like boy meets girl... it's a bit hard to follow and the uke actually gets a drug from the seme that causes him to switch.. ahem.. lower body parts.. to a females. Again, not sure if you'd be interested but I really like this one. (=・ω・=)
Any psychological bl stories out there? preferably with a good plot and not just some misunderstanding. really love bl stories that centers about mental difficulties as well