They cast four boys: Caleb McLaughlin, Noah Schnapp, Finn Wolfhard, and 14-year-old Gaten Matarazzo, who has a rare genetic disorder. The Duffers wrote it into his character.

Things that go bump in the night. getty. This article is the first in a series that explores in a straight forward way the often not so straight forward inner workings of the brain and mind.

Naturally, things go bump in the night and strange occurrences are afoot. At a housewarming party, guests try to make contact during a séance — to their own detriment.