During a winter getaway at an isolated cabin, a self-destructive young woman becomes convinced that her best friend is stealing her blood. Horror,Thriller All the technical aspects are fine. Marshall does a great job of portraying an awkward introvert. It's just that the overall story is very thin and stretched out slowly. Couple and a new friend go off to a cabin, there's talking, lots of talking, I get they're establishing the characters but this drags out. Anyway, it's a "is this really happening or am I crazy?" plot once it gets going, and it does that part well. There's just not much to it to make for a solid film.