As a retired brain surgeon, Henry Marsh thought he understood illness, but he was unprepared for the impact of his diagnosis of advanced cancer. And Finally explores what happens when someone who has spent a lifetime on the frontline of life and death finds himself contemplating what might be his own death sentence. As he navigates the bewildering transition from doctor to patient, he is haunted by past failures and projects yet to be completed, and frustrated by the inconveniences of illness and old age. Eye-opening and brutally honest.