Psycho/obsessive characters

This one is pretty cute I did read this one for the romance and the skill leveling from the Mc

I remember reading this in middle school and thinking the thriller was peak so I reread it this year for nostalgia…. I forgot they were brothers ….. I guess my brain took that piece of information to not cause me any trauma because I genuinely forgot that piece of information. It gets kind of confusing at the end with the hallucinations and the “it was all a dream” plot they used but overall I liked the beginning with the killings up until we figure out their brothers .