Recently, I'd noticed that murder mystery settings are often unvaried, usually taking place in a setting grounded in every-day reality. When I pointed this out to a group of friends, outwardly expressing my confusion as to why most murder mystery stories don't take place in settings grounded in fictional worlds and as apart of an overarching narrative while simultaneously internally brainstorming ideas to run with the idea of presenting a murder mystery in an unconventional environment. One of them responded that the reason these types of stories are often placed in familiar environments is because it helps detract from the mystery by allowing a good percent of the focus on exposition and description being directed at the mystery almost exclusively and that by having to present information building an unfamiliar environment would detract from the mystery in the hands of an unprepared writer. To use as an example, I'll present a quick overview of a concept I had while discussing this with friends (with minimal development or expansion upon the idea): A conspiracy group takes in a hostage for questioning, and someone trying to compromise the group's endeavors murdered the hostage. The mystery is placed in the hands of one of the members of this organization, who has to find out who is trying to dissolve the conspiracy from the inside in coordination with his usual work haul. Now, chances are I definitely will not run with this concept, but its merely the most extreme example I could provide so any explanations for how to deal with it and any answers to my questions I could apply to a less extreme usage of this idea of unfamiliar settings on a smaller scale. 1: How would one fluently provide information on the investigation of the murder as well as providing information on this new setting where the conspirators exist and the job they do without detracting from any of them? 2: Given that the story would likely have a large scale due to needing to explore the new environment, the mystery would need a scale to match. What else could the enemy of the conspirators do to further his endeavors to dissolve the organization, relating to his initial action, to subsequently leave clues for the MC to follow? 3: How would the MC's normal work and the new mystery correlate? 4: How could the murder mystery and the overarching narrative fuel one another? How could they correlate? How would one drive the other? How would they feel like they belong together in the same narrative? And any other general tips for running with unconventional settings in a murder mystery on an equal or smaller scale would be appreciated.