The Enigma of Amigara Fault by Junji Ito

I read this here. This story stuck in my mind and is definitely worth the read. Reminds me of Lovecraft for sure, definitely as creepy, and the end sucks you in like the rock seems to for the people it attracts to enter the human shapes they feel is specifically made for them.
If horror comics which are mostly a slow build and ends with a creepy ending, it does the job.
