David traces addiction all the way back to its roots: a first DUI at fourteen, a violent breakdown at sixteen that landed him in rehab for his birthday, and a family history of sobriety and relapse running through both grandparents. Returning to treatment at forty-three, he confronts his own judgment of other addicts, the delusion of being a "functional" one, and the people, Nick, John, Kim, Otto, who crack him open with honesty instead of pity. It's a philosophical, unflinching look at what actually defines a man, a recovering addict, a person, and it closes on the quietest gut-punch in the series yet: a phone call where someone finally tells him she's proud of him.