This series is pretty popular too! There's a lot of really creepy things that go on, from monsters from another dimension to horrific experimentations all going on in the little town of Hawkins.
The story follows a young group of boys and the first season begins when one of their best friends suddenly disappears. You find out he was taken to the "Upside Down," which is a darker, more sinister version of their reality.
There's plenty of creepy craziness in the series, mixed with a bit of science fiction. There's plenty of suspense as well and great characters.
My favorite character is El and I quite enjoy her interactions with Officer Hopper.
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This series is chalk FULL of 1980's references and call backs, and one of the main villains has a nightmarish Freddy Krueger like vibe.
If you're a fan of 1980's horror, sci fi or even just a fan of the 80's, you'll like this series. It's also a great series for Halloween and horror fans. It's on Netflix. Check it out.
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Oh, did I mention Winona Ryder from Beetlejuice is in it?