A couple or a small group of friends, staying in a remote, bare-bones, cut-off-from-civilization abode of some kind, try to cope with an increasingly terrifying situation due to unforeseen predators and whatnot.
What was the very first successful film of this sort? George Romero‘s Night of the Living Dead(’68), I suppose, followed by Sam Peckinpah‘s Straw Dogs (’71)…right? Am I forgetting something? The first generic, popcorn-level exploitation slasher flick set in a cabin in the woods was…?