Killer Hoo-Ha! (2010) on Netflix

Contestants arrive at a secluded old carriage house for a reality show. They will soon compete for the title of Miss Hoo-Ha. A callous producer Kal Showman hopes to exploit them for maximum publicity. As soon as they arrive petty jealousies and competitions start to arise fueled by alcohol and sleep deprivation. Dex, the production manager is trying to keep them under control but their bad behaviors attract attention of an unseen menace. Their worse reality will strike before dawn.