Sublime (2007)

George Grieves enters the sterile confines of Mt. Abaddon Hospital for a seemingly uncomplicated procedure, only to find himself ensnared in a far more sinister reality. His medical condition, he soon realizes, is drastically underestimated. As his deepest fears materialize within the hospital's oppressive atmosphere, a chilling truth emerges. Mt. Abaddon is not a sanctuary for healing and recovery, but rather a foreboding terminus. It is a place where hope withers and shadows claim those who enter.