What is your favorite Psychological Thriller?

Psychological Thrillers are my favorite genre of movies, and I’ve seen alot of them. To date, David Cronenberg is my favorite Director in this area, and eXistenze and Brainscan are two of my favorite movies. I would like to meet people who have weird tastes in movies like I do and share reviews. Please tell me your favorite movie(s) that are either Psychological Thriller, Sci-fi, Horror, even Romance if it’s weird and tripped out. I like the obscure and absolutely nothing offends me. I look forward to seeing everyones favorite movies and will most likely private message you back with my review after I see it. Note, the only movies I’ve ever wrote a bad review on were Blairwitch Project and Paranormal Activity.. I just really don’t like the “found footage” style movies. District 9 was pretty neat tho.