Salem's Lot. https://www.imdb.com/title/tt0079844/
I've never got beyond the early stages of this before for some reason, despite it being the sort of subject matter which appeals quite strongly to me.
Well worth it, though. David Soul and James Mason deliver pretty good performances, so I may check out some of Mason's work as I've not seen many films with him in.
Additionally, I might take a look at the 2017 remake at some point which I believe stars Rob Lowe.
The rocking chair scene still creeps me out, ever since I was a kid