Here's a tip. If you are a couple whose marriage is in trouble, it is something of a mistake to drive through the endless cornfields of Nebraska at night and then Spoiler run somebody down near an apparently deserted town where the locals have a thing for blood sacrifice with a view to aiding crop fertility . Yes, I know I just spoilered the plot, but honestly. This movie - which spawned a franchise of increasingly poor sequels - illustrates the problem with adapting Stephen King to the screen: the story itself, in terms of plot, is serviceable. But the magic comes from the words on the page. King's prose conveys things which movie conversions do not. Oh, the plot works well enough, but it is simple and, dare I say it, filled with cliché. The short story from which it is adapted - ah, well that is another story! Peter Horton and Lina Hamilton are fine as the couple beset with problems, and a nice sense of atmosphere is built up. But, as a viewer who has not read the story or seen the film before - well, I bet you can guess what's going to happen.