Green Room
If you want to see a pure psychological nightmare of a character played by Imogen, check out Green Room. Seriously, I am convinced that she was having way too much fun with a box cutter and finding new ways to use it. Awesome stuff.
shareAgreed. The "unzipping" scene made me cringe and had my wife practically crawling up onto the back of the couch. Great flick and great performances all around.
Foofy