What's the name of the movie?

I watched the trailer somewhere but i seem to forgot the name. It's a horror movie. And it goes like this girl has a car accident and she stays in the hospital. While she is in the hospital some girl is hunting her. In the trailer there are some scenes like the girl looks through the doors locksmith and she sees an eye, and then she hides under the table and raises her hand to take her cell phone but then somebody puts its hand on hers, and then they show the girl with long black hair and white sleeping dress in the hospital's hallway . Thats all i know, please help (: