The perfet system for personal horror/mystery/creepy shit in general storytelling. Is easy to understand but at the same time give you a lot of options to create horror beings and difficult situations. Is more about making your own horrfying story than give you a bunch of stats for pre-made creatures. Also, many aspect have very well defined mechanics, which makes players feel they are in control of a realistic character, raising the tension of each roll. One of my favorite systems ever (being playing TRPG for 20+ years).
[5 of 5 Stars!]