Salem's Lot (1979) 
A novelist and a young horror fan attempt to save a small New England town which has been invaded by vampires.
Salem's Lot: 1979 TV Miniseries All Seasons
Writer Ben Mears (David Soul) returns to his hometown to write a book about the supposedly haunted Marsten House, but finds someone else has bought the long-empty property. When townspeople start dying mysteriously, Mears discovers the owner of the mansion is a vampire turning them into an army of undead slaves. Based on the Stephen King novel and directed by Tobe Hooper (The Texas Chain Saw Massacre). [more inside]