Luke brings his anxious younger brother Aidan to a student film set that Aidan will be performing in. Aidan's anxiety only builds as he is greeted by a chaotic crew led by an eccentric and off-putting director who promises this will be "one killer movie". That promise comes to fruition when the director unveils a surprise gimmick: the film will feature a real demon. From there, it doesn't take long for Aidan's performance to become all too real as the set descends into violent and bloody chaos as the two brothers must fight their way to survival.