This is the story of Steven Avery, a Wisconsin man who spent eighteen years in prison for a crime on a wrongful conviction. Two years after he was exonerated of the first crime and poised to reap millions in his wrongful conviction lawsuit, Steven Avery was arrested for the exceptionally brutal murder of Teresa Halbach, a freelance photographer who had gone missing several days earlier. The "Innocent Man" had turned into a cold blooded killer. Or had he?