Imagine you are trapped in a room with some monstrous creatures hunting you. This is the premise and it works very well! Unfortunately, almost everything else doesn't. And it is strange because the actors were OK, most of them.
The biggest problem are the monsters. They are run of the mill three jawed worms coming from under the ground. After a small attempt to explain them logically, the movie makes them function completely differently from how they were described. And they are pathetically low budget. You can only suspend your disbelief so much before you start laughing out loud.
Then there are the side stories that have absolutely nothing to do with the main plot! Family drama, relationship drama, a neighbor that appears at the beginning, leaves for town and is never mentioned again, a scientist that appears for a short while only to vanish completely, an entire background of being a policeman (even if the guy is practically blind without glasses) that never materializes and so on and so on.
What probably annoys most of the viewers is the potential of this film which was completely wasted in silly ways. One can almost see what it could have been if only edited differently or if some of the ideas in it would have been explored more. The venom of the worms is hallucinogenic. At times the victim believes fantastical things happen. Could that have been used to increase the stakes? Of course. They just didn't. Then there is the nature of the monsters. They are worms! Could they have made them be more gross, infect their hosts somehow, increase the fear. Of course. They just didn't. The plot sounds a lot like a Covid film, with a tiny cast in a small location. But they had 10 people in it, with at most three that mattered in any way. Could they had given them more to do, die horribly and graphically at least? Of course. They just didn't.
Bottom line: you want an entertaining worm horror movie watch Tremors again for the 15th time. It's still good. It Crawls Beneath could probably be very amusing in a MisT3k kind of way, while drinking with friends.
