Official website: http://www.whydoyouhide.net/Pages.htm
IMDb wrote:Why do you hide?
Three recent college grads on a cross country road trip decide to spend a night in an abandoned cabin. Their open-road adventure quickly spins into a claustrophobic nightmare as they realize, even in the middle of nowhere, they are not alone.
Trailer here: http://www.imdb.com/title/tt0479151/videogallery/related_name-nm1868960
There's also a movie of the same name made in 2007 - that ain't the right one.