Horror recommendations, please.

High Tension is one of my favorite horror movies, it's directed by the same guy who redid The Hills Have Eyes. Jacob's Ladder isn't exactly a horror film, it's a psychological thriller, but it is indeed the most disturbing film I have seen to date. I actually had to get up and leave the room, and I'm a horror movie buff so that is saying something. Others that may interest you: House of Wax (remake), Final Destination series, Tamara, A Tale of Two Sisters (korean with subtitles), I Know What You Did Last Summer, Scream, and Friday the 13th.