A couple are heading through the woods and need to get some directions from the stereotypical creepy hill billies. Good idea to follow their advice ... ?
No surprises much in the first act. Dialog keeps the movie entertaining but as the second act kicks in, the movie feels like it is probably going somewhere interesting.
It's main idea has been done before many times (I won't quote other movies as it'll give that away easily) but it's handled well and, for the most part, hangs together and is a good watch.
The third act is where the movie starts to come apart a bit and becomes a bit of a jumble of nonsense. Yes it went downhill but no, the movie wasn't wrecked as it wasn't already on some incredible high ground.
I think with a bit of spit and polish and some better ideas in the last act, this could have been very good. As it stands, it's a worthwhile watch if you're stuck for a movie one evening.