The set as seen in Netflix’s Behind the Curtain: Stranger Things The First Shadow. Photo: Netflix Stranger Things is heading back to the US after debuting in the London West End. The spin-off prequel play, Stranger Things: The First Shadow comes to Broadway on April 22. Does it mean we’re getting Demogorgon puppets on stage? Someone call the Jim Henson Creature Shop! Here’s everything we know about the upcoming play and how it’s all connected to the kids from Hawkins, Indiana. How does the play