In Galicia (NW region of Spain) there is a TV series called "Serramoura" which elevates this to ridiculous levels. The series is supposed to take place in a very small town (maybe 20 people or so) but the series' death toll is probably like 50 by now (they are in season 8). At the beginning I think there were only sawmill enterprise conflicts for land, but now the viewers have seen arms trafficking, drugs trafficking, Russian mafias, mass kidnapping... and probably more (I don't even watch it, this is what I have picked up just from looking at parts of chapters from time to time).

When I see my partner watching it casually, I always joke that I don't understand how there are still survivors in Serramoura and how people still go live there, it would probably be less dangerous to go to a city in war.

I wouldn't exactly "recommend" the series and don't even know if it has been translated to any other languages than Galician, but just wanted to share because I find it funny.

This is a theme of pretty much everything Stephen King has ever written.

I liked "U Turn" https://m.imdb.com/title/tt0120399/ (set in small town Arizona)

I've heard good things about Shetland and Broadchurch, but I'm yet to watch them.

Top of the lake, broadchurch, sharp objects. Those are all tv series.

Hot Fuzz, U-Turn, Dogville (others already mentioned them).

Deliverance (of course)

The Lottery ( https://www.imdb.com/title/tt0116924/ tv movie, based on a great short story)

The Wicker Man

Twin Peaks

Cold in July

Not a film (though there is one too) but: Twin Peaks.

Death in Paradise (TV series)

dogville : )