The Task (movie, 2011)

Something diabolical is taking place on the set of "The Task" a new reality show in which players complete terrifying missions within the confines of an abandoned prison hoping to win a hefty cash prize. As six young students explore their new environment, malicious spirits make their presence known in the most gruesome ways imaginable, Unable to escape the labyrinthine prison, the contestants become unwitting pawns caught at the centre of a blood-soaked night of terror.