As America ramps up efforts toward victory in World War II, Frances Glessner Lee stands at the front of a wood-paneled classroom within Harvard Medical School and addresses the young men attending her seminar on the developing field of forensic science. A grandmother without a college degree, Lee may appear better suited for a life of knitting than of investigation of unexpected death. Her colleagues and students, however, know her to be an extremely intelligent and exacting researcher and teacher --- the perfect candidate, despite her gender, to push the scientific investigation of unexpected death out of the dark confines of centuries-old techniques and into the light of the modern day.