The Strangers
SPOILER ALERT. In The Strangers, a couple looking for a quiet night in their secluded summer home are terrorized by three masked people who walk slowly in and out of shadows while kicking empty cans and knocking over stuff. And they’re not in a rush (which I think is supposed to make them scarier somehow). Eventually they tie up the couple, stab them to death and drive on down the road. That’s it.