In 2016-2017, while working for the USA Today network's Wisconsin investigative team, author John Ferak wrote dozens of articles examining the murder case again Steven Avery, who had already beat one wrongful conviction only to be charged with the murder of Teresa Halbach in 2005. The case became the wildly successful Netflix "Making A Murderer" documentary. In this book, Ferak lays out in exacting detail the post-conviction strategy of Kathleen Zellner, the high-profile, high-octane lawyer, to free Avery. To write this book, Zellner, perhaps America's most successful wrongful conviction attorney, gave Ferak unique access to the exhaustive pro bono efforts she and her small suburban Chicago law firm dedicated for a man she believes to be a victim of an unscrupulous justice system in Manitowoc County.