Spelunking is terrifying to me without adding any monsters. Tight spaces, tons of stone pressing down and true darkness where it's impossible to see, no matter where you look. Delving underground can be deadly all on its own, but one of my favorite horror movies ever only made it more terrifying for me.
When a group of friends goes exploring a local cave system, they're prepared for the claustrophobia of tons of rock pressing down around them, but not for the devilish monsters hiding within dark tunnels.
The Descent is a 2006 horror flick you can watch for free with a Prime Video subscription. A cult classic infused with hints of terror in every frame, this movie has struck fear into the hearts of audiences for nearly 20 years.
I've been a fan of horror movies since the 1980s, startin

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