If you can't tell by the title, 1976's Squirm is about worms.  Worms in people's homes, worms in people's skin, and worms in people's internal organs.  This movie is 100% as-advertised.  In Saidee's Rabbit Hole, we'll find out how they made the screaming worm sound effects, and which A-List actors almost starred in this B-movie.    

Squirm is available on Amazon Prime Video.