A group of friends go on vacation together every year and do some sort of grueling physical activity. Last year, they went white-water rafting (which ended in a car accident that killed one’s husband and little girl). This year, they’re going to explore a cave system. Yay!
Here’s the problem: one of them is an idiot and decided that she’d tell her friends they’re doing one cave area (one that’s named and has been very well explored) in favor of a new cave area that no one’s explored before, ever. But even that wouldn’t be a HUGE problem, per se. It just gets worse because it turns out that the reason no one’s ever explored it is because there are these weird, Gollum-like creatures down there and they enjoy eating meat. And if the meat is human and it comes to them, so much the better.
I didn’t think the creatures were all that scary (seriously, they look like Gollum, especially in the beginning where you only see them running past in the distance), but the parts where the people were in these incredibly tight tunnels and could barely squeeze through freaked me out. I’m claustrophobic and even watching those parts were hard.
There’s apparently a sequel, but I’m probably not going to check it out.