And on Wednesday (November 29), the video-streaming platform unveiled the new trailer and artwork for another chapter of this dark dystopian series, donning the name "Black Museum".
In a statement obtained by the Radio Times, Netflix said the episode would "tell the story of a lone traveller who stumbles across a tourist-friendly crime museum with a shocking star attraction".
It stars Douglas Hodge (The Night Manager), Letitia Wright (Humans) and Babs Olusanmokun (The Defenders) and is directed by Colm McCarthy (Peaky Blinders, Doctor Who and Sherlock).
As Rolo Haynes explains in the ominous one-minute trailer, his museum, which features authentic criminological artefacts, is not a place for the "faint-hearted".
"If it did something bad, chances are it's in here," he says.
"There's a sad, sick story behind everything here, just like our main attraction."
There is little else known about "Black Museum" although Annabel Jones, who co-writes Black Mirror with Charlie Brooker, has said it will be an "unrelenting" episode.
"It’s three stories in one, a portmanteau-type thing," she told the Independent.
"But absolutely full of ideas that whip along and before you know it you’re at the end of a 90-minute film and you're like 'Oh my God, can you please stop? This is horrendous."
This place ain’t for the faint-hearted. pic.twitter.com/j6RtdfJRL7— Black Mirror (@blackmirror) November 28, 2017