The movie is in a warehouse. A man with scars on his face interviews people for a game show. Asking them what there worst fears are. When they arrive to the game show which is a warehouse. He locks them in. Each couple is called separately into a room and he puts them through their worst fear. At the end it is the father of one of the girls and these were all her friends . He had been left in a fire and was trying to get revenge.I saw it within the past ten years.

Here's a snippet of someone's review of 'Are you Scared?"... seems to match what you described.

... a crazy guy who has a burned face. Then wake up in an abandoned wear house they soon discover that they are all being watched by some one who has put cameras everywhere, then they are asked to play a game and face what they fear the most.
Are You Scared? (Video 2006) - IMDb (http://www.imdb.com/title/tt0845955/)