In this riveting book, neurosurgeon J. William Langston and writer Jon Palfreman recount the bizarre and far-reaching mystery of six patients who arrived at San Francisco area emergency rooms after using a synthetic analogue of heroin. Fully conscious but unable to move or speak, they were soon diagnosed by Langston as having advanced Parkinson's disease. This spellbinding book offers a stunning report on these baffling cases. of photos. From the Trade Paperback edition.