Salem's Lot (1979)
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Young novelist returning home to Salem's Lot after many years is disturbed by the strange behavior of its people. He begins to believe that the source of the trouble may be the eerie old Marsten House that overlooks the town.
I love this movie, the 1979 version, I read the Stephen King book years later after watching this. Both were great but I am biased as I always love Kings books turned into movies. This is scary at times and is not corny which is good. I love the bit where the kid flies up to his friends window and scratches on it while asking his friend to let him in. lol I had nightmares for days after that.