Six young people play a dangerous game of tag in public, chasing each other through the crowds, streets, and buildings of Chicago. This secret, one-of-a-kind, wildly expensive game offers a macabre twist to the childhood version: If you get tagged, you die. Three "Its" have their reasons for buying a place in the game. Handpicked innocents play as "Runners", under threat to their loved ones should they refuse to participate. The game will not end until someone is tagged, so the Runners must choose how to play.