20 Horror Movies That Weren't What Anyone Expected

5. The Borderlands

You couldn't really be blamed for having tempered expectations for The Borderlands - or Final Prayer as it's known internationally - given that it's a low-budget exorcism-themed found footage film which released in 2013, a point at which both of these subgenres were wildly oversaturated.

But Elliot Goldner's film has a number of pleasant surprises up its sleeve - for one lead actors Gordon Kennedy and Robin Hill have terrific on-screen chemistry as a pair of skeptics investigating a Devon church said to be a hotbed for supernatural activity.

And even though there's a pointed slide into folk horror territory over the course of the film, that still doesn't prepare the audience for quite how shockingly, brilliantly off-piste The Borderlands goes in its barmy third act.

In the chilling final scene, it takes a hard-left into downright Lovecraftian territory, serving up a gnarly climactic twist that's executed in an impressively thrifty, budget-conscious way.

Regardless of what you think of the movie overall, there's absolutely no forgetting that ending.