Hotel Ghost Caught On Camera?

This video shows what was allegedly recorded by a hotel security camera on August 21, 2012. The footage is being recorded as security responds to screams coming from an empty room. What happens next is creepy to say the least. Because of the lack of any back story, I am inclined to say that this is a fake, but a well done fake, without a doubt. The youtube user that uploaded the video, has other similar videos, many of which seem to contain genuine footage. Is this a genuine ghost video? You decide.