Hidden (2005)

Deep within a dark, twisted forest, at a faraway adventure camp, a group of young 'camp leaders' play a fast and furious game of 'hide and seek'. The atmosphere is strange and thick with tension - there is a feeling in the air that all is not well. Alliances are formed; relationships are tested, and in some cases disintegrate to the point of violence. All the while they are being watched by someone... or something. In a spectacular climax, the mystery begins to unravel as everything becomes suddenly and painfully clear. The shocking, violent truth is far worse than could ever have been imagined...

Thriller