Laura, 25, is an actress in a L.A.R.P. (Live Action Duty Playing) Game, where the individuals play the survivors of an atomic war that live underground in a sealed shelter. After numerous mysterious accidents, the game is interrupted and the gamers leave the bunker while the team remain behind to check out the disappearance of Greg, the mastermind of the video game. They quickly find themselves caught inside and in peril as they start to pass away in strange ways and the group realizes that somebody or something paranormal is playing a twisted video game with them which quickly plunges into a scary fight for survival.