The book is a detailed investigation into the years in Shakespeare's life that are not well-documented, from 1586 to 1592. Acheson uses a variety of sources, including historical records, contemporary literature, and Shakespeare's own works, to speculate on what Shakespeare might have been doing during this time. The book explores the possibility that Shakespeare was involved in the theater world, possibly as an actor or a playwright, and that he may have traveled or been involved in other activities that influenced his later work. Acheson also examines the social and cultural context of the time to provide a backdrop for Shakespeare's development as a writer.