Squirm (1976)

In a small town in Georgia, the residents experience a series of strange occurrences, including power outages and thunderstorms. As it turns out, the town is being infested by killer worms that have been driven to the surface by heavy rain. The worms begin attacking and devouring the townspeople, causing panic and chaos. Amidst the chaos, a group of survivors must find a way to stop the worms before they destroy the entire town.