IMDb has the movie summarized as a young British boys and girls travel to an isolated cabin after being promised a night of heavy partying. Instead of the fun they hoped for, they meet a killer out to reap vengeance on them for the death of his brother. This summary does not do this movie justice, it is so much more.
Truth or Dare is a popular game played by schoolchildren. This movie puts a new twist on this innocent game (which usually involves someone kissing someone) and turns it into a game of truth or die. The brother of the boy who died has decided to seek revenge for what his brother did. It involves pride, military idealism, and the need for his brother to not be homosexual. The group of friends are tied to chairs so the brother can interrogate them and find our which one of them sent a postcard to his suicidal brother. He asks them to play truth or dare, but instead it is truth or let's see who gets to guzzle gas and die. One by one the group turn on each other, until they learn who sent the postcard.
Havoc ensues, people die, people get the revenge they desire, and it isn't who or how I expected it.
As far as a horror movie goes, this has lots of gore and blood, and one innocent person quickly gets their neck snapped in a very intense scene, but it isn't really a horror movie as much as it is an intense thriller or suspense.
I liked this movie, I liked the evil of the brother, and the end was not exactly what I was expecting. I thought it held my interest after we got away from the beginning party scene, which I will admit took way too long. If you are bored and wondering what to watch, I suggest giving TRUTH OR DIE a chance.