Don DeLillo's 'Zero K' follows the existential journey of Jeffrey Lockhart, whose billionaire father, Ross Lockhart, is the principal investor in a mysterious compound dedicated to the preservation of bodies for future revival. As Ross's younger wife, Artis Martineau, faces imminent death, she decides to become a part of this speculative venture that defies the natural course of life and death. Caught between his father's quest for immortality and his own grappling with the purpose of existence, Jeff contemplates the significance of mortality in a technology-driven future. 'Zero K' is an introspective novel that weaves together themes of family, love, and the profound question of what it means to be truly alive in the world.