Anyone have any recommendations that have Stalkers, kidnappers, psychos?

Blind Play
Killing and Stalking

Try the “Obey me” it’s kind like physiological like that and i hope you don’t get traumatized

Stalker's game

https://www.mangago.me/read-manga/warehouse/

https://www.mangago.me/read-manga/brutal_satsujin_kansatsukan_no_kokuhaku/ (This one is just straight up psychotic)
https://www.mangago.me/read-manga/the_world_of_pieces/ (This one is a Yaoi but its crazy)