Whatsthe name of the scaryovie where the couple is tormented by people in masks?

It's a newer movie, I keep wanting to say the messengers bit that is
not it. It's a couple after a wedding in a country house and a small
group of people torment them nearly to death. At the end some kids on
bikes find them, after passing the killers on a country road in a pick
up ? Please help?'! 1st correct gets 10 pts