For nearly her whole life, Rachel Matson saw the world through the lens of a camera, and produced stunning photographs that not only captured the moment, but also hinted at a greater truth. Now the ninety-year-old widow lies paralysed, in the final stages of a debilitating illness. Yet her eye still picks up the most telling details, and when missing pieces of her past are slowly brought into sharp focus, she must now confront a haunting truth . . .