A new movement has replaced Project Mayhem, and even Tyler Durden doesn't know how to play by these rules. Marla Singer is about to deliver her second child, but the daddy isn't her husband it's Tyler, who's very invested in his heir, and the world he'll inherit, as Die Off Industries plots to fine-tune mankind. Bestselling novelist Chuck Palahniuk is back with his greatest creation, the sequel to the book that spent six months on the 2016 New York Times bestseller list.