The Descent: Part 2 (2009)
The sequel to Neil Marshall's subterranean horror continues the story exactly where the original left off. Sarah the sole survivor has been found, traumatised, suffering from amnesia, and covered in blood from the other women. The suspicious police decide to send a search party into the cave system - and they're taking Sarah down there with them.
The set up to the story reminded me of Aliens - where the previous film's female survivor is sent back to the place it all started, with a team of marines. The darkness, use of torches, and the tunnels, made me think of Alien/Aliens a lot. And there's even a nod to the 'chestburster' sequence. As with The Descent, this film uses the claustrophobia of the caves and the darkness to really build up the tension and suspense. There are several cattle-prod type jump scares, which are genuinely frighteningly and keep you on the edge of your seat. (And several feet above it if you're easily startled.)
But it's not just about the shocks. There's a decent story which actually complements the original. The gore is well handled too. Rather than chucking blood and guts at the camera, the film maker does gruesomeness on a smaller, subtler scale, which really gets under your skin. Let's just say the word "fingernails" and I'm sure you'll get the idea.
As it gets near the end there are a few plot twists, and I didn't see the final scenes coming at all. The Descent: Part 2 continues the high tension of the original, but also works as a film in its own right. Being a sequel to one of my favourite horror movies, I'll admit I didn't have high expectations at first. But I was pleasantly surprised. And I must say - impressed. 4/5