I think this would be a perfect team up. Be cautious. Possible spoilers for season 1 and 2 of Stranger Things ahead.

Investigation based game. Board tiles make up Hawkins and key locations.

Players have a selection of characters to choose.

Have a betrayer mechanic. Not in every game played. Optional or random.

Items and evidence and mystery unravelling.

A campaign would play out like a season.

Items could be influenced by all sorts of cool 80s references and easter eggs.

FFG, please dont lock this curiosity door.