Science is just one way of looking at life. As a neuroscientist working at the forefront of medical research it is Ruth McKernan's way. When her father, Billy, succumbed to a mystery illness and slipped from consciousness into coma, Ruth watched his life ebb away with a mixture of love and terror. She struggled for control by using her scientific knowledge to analyse his medical condition. In this moving account of her father's last year, love, grief and hope are intertwined with a crystal-clear scientific explanation of the way our brains and bodies work. The result is an inspired blend where the contrasting view of scientist and daughter ultimately unite.