A month after receiving a fatal diagnosis in January 2015, legendary neurologist and storyteller Oliver Sacks sat down for a series of filmed interviews in his New York City apartment. Surrounded by family, friends, and notebooks from six decades of thinking and writing about the brain, he talked about his life and work, his abiding sense of wonder at the natural world, and the place of human beings within it. Drawing on these deeply personal reflections, as well as interviews with close friends, family members, colleagues and patients, and archival material from every point in his life, this film is the story of a beloved doctor and writer who redefined our understanding of the mind.