K.J. Yossman An unlicensed “Making a Murderer” musical is set to have its world premiere at the Edinburgh Fringe Festival in Scotland next month – without Netflix’s involvement.“Making a Murderer: The Musical” is based on the story of Steven Avery, who is also the subject of Netflix docuseries “Making a Murderer.” The musical is written by BAFTA-winning writer Phil Mealey (“The Royle Family”), who admits he was inspired by the Netflix documentary.“When I watched the documentary, like many others I was outraged at the way the system seemed stacked against Steven and his nephew Brendan,” said Mealey.