Right, but do you see the problem: What WOULD be a Blades in the Dark TV show(they are trying to make one) look like? Just take a plot from Leverage or The Wire and make the setting a 'dark' Sherlock Holmes set...and slap BinD on it, and your done?
So, when you are talking "NPCs and Plots" are you talking about what is in the game rulebooks? Because most game rulebooks don't have all that much fluff detail. How many core game rulebooks have "extended metaplots and well established NPCs"
I've never seen close to a novels worth of "very strong central themes and even baked in plots, and lots of older games have extended metaplots and well established NPCs" in the game rulebook. What is a "new" game rule book example with a backed in plot("you must do this plot to play the game?") and what is an example of an old game rule book with a well established NPCs?