Director Charlie Kessler claims Ross and Matt Duffer ripped off the concept of a military base conducting scientific experiments on kids from a short film of his titled "Montauk." He says he pitched the film to the Duffers at the 2014 Tribeca Film Festival, and later on showed them the script.
Kessler also says "Stranger Things" was originally named "The Montauk Project." In addition to money, he wants the Duffers to destroy all materials allegedly based on his ideas.
Netflix and the Duffers are staying mum about the lawsuit.