The Stranger Things series finale briefly mentioned Montauk but why was that important to the show? During the show's conclusion, which aired on Wednesday, December 31, Hopper (David Harbour) told Joyce (Winona Ryder) about a job offer he received in Montauk, New York. Fans of the hit Netflix series might be surprised to know that Stranger Things was originally known as Montauk. Creators Ross and Matt Duffer pitched the show as an "eight-hour sci-fi horror epic" set in Montauk and other locations in the Long Island area.