We see this horrifically in the episode’s cold open (and subsequent climax). Bruce, the reporter at The Hawkins Post , and Mrs. Driscoll, the elderly, rat-eating woman, are dragged into the basement of the hospital. There, they do not simply die—they merge. Their flesh separates from their skeletons, combining into a writhing, organic mass of blood and sinew. It is the most graphic body horror the Duffer Brothers have ever produced, evoking John Carpenter’s The Thing and David Cronenberg’s The Fly . This is no longer a monster from another dimension; it is a virus rewriting biology in real-time.
“Everywhere.”
The episode’s title refers to a specific process. Unlike Will Byers’ possession in Season 2, where the Mind Flayer inhabited a living host, Season 3 introduces the concept of physical assimilation. The villain, now using a fragment of the Upside Down melted into steel at the foundry, literally melts humans down into biomass. Stranger Things - Season 3- Episode 5 -
“The Key opens the gate. The Flayed feed the Key. When the heart beats, the Mind Flayer walks again. Not in the Upside Down. Here.” We see this horrifically in the episode’s cold
“Because Hopper would arrest us,” Dustin hissed. “And because this is our discovery. Ours, Steve.” There, they do not simply die—they merge
A wet, churning sound. Like meat being pulled through a grinder.