A high-stakes hybrid survival format where brain games collide with psychological warfare. Ten participants are trapped inside a sealed building and must cooperate to escape and win a cash prize. But hidden among them is a killer whose mission is to sabotage their escape and eliminate them one by one. With no fixed script and survival determined by constant judgment, every decision becomes a test of intelligence, trust, and human nature. The survivors must rely on one another while questioning everyone around them. In this paradoxical game where trust is essential yet potentially deadly, who will ultimately claim the bounty—the survivors or the killer?