Neil Marshall’s tense, oppressive horror entry is an absolute masterpiece. From the setting to the creature effects to the screenplay, there’s so little to reproach here that it’s surprising that the movie isn’t already a bone-fide mainstream classic. Lead Shauna MacDonald tears into her role as a grieving wife and mother joining her friends on a cave-exploring adventure, headed straight for an unenviable head-first run-in with subterranean, flesh-eating monsters. Marshall’s grasp of atmosphere and setting are remarkable, forcing most viewers (even horror aficionados) to white-knuckle their way through the proceedings, on the way to a memorable, devastating and emotional climax. Highly, highly recommended.
Rating: ★★★★★ (out of 5)
Pop Culture Thoughts 
This was a pretty great watch. Really enjoyed the atmosphere as they set up the story and then they managed to make the second half a very tense experience in a fun way. Thanks for sharing.
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