Warehouse
the art and smut and psychological elements are great. Tbh the amnesiac revenge victim thing isn't my cup of tea usually, and the yandere/angst stuff is predictable sometimes, but it's got so many pluses.
Chi No Wadachi
It's fucked up, but honestly one of my favorite psychological horror manga out there. Gorgeous art that can range from subtly eerie to intensely disturbing, a family drama that's like a train wreck you can't look away from.... it's great! Also worth checking out the mangaka's other work, Boku wa Mari no Naka.
Kasane
Honestly one of my favorite manga out there. Great art? Check! Homoeroticism? Check. Drama and Intrigue? Check. Complex characters with mixed morals? Check! Augh it's honestly so good. Also, check out the live action movie, it's pretty good too!
Brutal: Satsujin Kansatsukan no Kokuhaku
The murderer is funny but the real horror is the way that the faces don't match up to the heads
Zankoku Na Kami Ga Shihai Suru