An immersive theater performance where 15 audience members sit and watch another 15 onstage. After half an hour, they find themselves replacing those onstage, only to discover that another 15 have appeared in the seats they've left behind. And so it continues, the theater building—dormant, empty, and unlit save for your flashlight—seems unable to be deactivated. And within this strange process, wearing headphones and a "hi-viz" vest, you're cast along with everyone else as some kind of extra. But an extra for what?