Really Weird Red Cave

I was young when I saw the film, but even so it felt like it could have been from the 80s or relatively old; i have no clue when this film is from.

The only scene I can really remember is where there’s a group of people who are in what seems to be a group of people in this weird red cave, covered in blood or some sort of other thick red fluid, and what looks like large, thick, yellow tubes. I’m now realizing that the description sounds like spaghetti, but I don’t think it was spaghetti; the film seemed pretty scary, and why would spaghetti be scary?

There also may have been blue barriers that were like chain link fences, but thicker. I think it was an alien based film, but I am not 100% sure.

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