The first poster for The Last Exorcism went with the age-old trick of scaring people with a creepy child doing things that, really, no human is meant to do. They're back at it again with virtually the same technique in the new poster, which you can see below. Instead of doing a crazy backbend the creepy girl in question is literally crawling the walls, hovering up int he corner like a back ready to jump down and suck your blood.

Or, at least, I assume that's what a girl possessed by the devil will be doing. The Last Exorcism comes out August 27, in that end-of-summer window that pretty much only hosts horror movies. Take a look at the official synopsis and the poster below, and if you want to be terrified by possessed children in a few weeks, you'll know where to turn.

When he arrives on the rural Louisiana farm of Louis Sweetzer, the Reverend Cotton Marcus expects to perform just another routine “exorcism” on a disturbed religious fanatic. An earnest fundamentalist, Sweetzer has contacted the charismatic preacher as a last resort, certain his teenage daughter Nell is possessed by a demon who must be exorcized before their terrifying ordeal ends in unimaginable tragedy.

Buckling under the weight of his conscience after years of parting desperate believers with their money, Cotton and his crew plan to film a confessionary documentary of this, his last exorcism. But upon arriving at the already blood drenched family farm, it is soon clear that nothing could have prepared him for the true evil he encounters there. Now, too late to turn back, Reverend Marcus’ own beliefs are shaken to the core when he and his crew must find a way to save Nell – and themselves – before it is too late.