Wrong Turn is the right turn. Quality sequences of mad violence and horrifying specters of death abound.
Have you ever taken a Wrong Turn and ended up in Canada (but pretended it was West Virginia)?
(http://www.fight-evil.com/movies/years/2003/597-3.jpg)
one of the best movies of the early 2000's
most of the sequels blow chunks but this one is top notch
go back and rewatch it from time to time
oh and eliza dushku [*evil*]
So I think I've seen the first four movies, but barely remember anything about the third and the forth, which pretty much confirms what you said.
Oh, and about Dushku - I think Chucky agrees. [*browwink*]