So Killing Stalking has definitely left an impression on me. On the year this manhwa got popular because of it's storyline and gruesome theme, I had trouble reading it since I was the type of person who would get disgusted easily. It took me years to warm up with Killing Stalking and eventually, I found the courage to read it. I realized that this is definitely an intriguing manhwa. It kept me up with the suspense and would always leave me mystified so this is an absolute must-read.
Killing Stalking