'The Last Exorcism' doesn't hit theaters until next Friday, but the horror flick is already scaring up a storm -- at least on the Internet.

Just ask a number of unsuspecting guys, who recently fell victim to a frightening viral campaign while browsing the video chat site, Chatroulette.

The lowdown: A pretty girl appears before camera and motions as though she's about to take off her top -- a dream scenario, we presume, for the guys watching on the other end. But that dream turns into a nightmare when the girl suddenly becomes possessed by the devil and lashes out at the camera. Check out their hilarious (and very NSFW) reactions after the jump.

'The Last Exorcism' doesn't hit theaters until next Friday, but the horror flick is already scaring up a storm -- at least on the Internet.

Just ask a number of unsuspecting guys, who recently fell victim to a frightening viral campaign while browsing the video chat site, Chatroulette.

The lowdown: A pretty girl appears before camera and motions as though she's about to take off her top -- a dream scenario, we presume, for the guys watching on the other end. But that dream quickly turns into a nightmare when the girl becomes possessed by the devil and lashes out at the camera. Check out their hilarious reactions below.

Warning: Video Contains Explicit Material and Is NSFW