Soon to make its world premiere at the Film4 Frightfest in London, the producer of Wolf Creek will be making waves again with Coffin Rock - the feature debut from writer-director Rupert Glasson. Here's how the festival describes it:

In the small coastal town of Coffin Rock, Rob and Jess live an almost idyllic life, their relationship marred only by their inability to have children. In a weak moment Jess sleeps with a stranger and later learns she’s pregnant. But the shocking truth is Evan targeted her the moment she walked into the fertility clinic where he worked. Now Jess’ guilt turns to full-blown horror as Evan begins a petrifying transformation from menacing stalker to unhinged psychopath….

But don't take their word for it, we've got the trailer below the break and it's truly unsettling stuff!