scary movies... :P

hi mcrmy!! so I am thinking of having a small party of friends, and my plan is we watch horror/scary movies one after the other. I haven't seen any scary movies really, and wanted to know what scary movies you would recommend. If you could leave a comment of scary movie ideas, and what the overall plot is, or just the name it would be much appreciated!! :)
Also would you recommend inviting guys and girls, or just girls...
thanks!!!! rock on! <3, mcr96