Murder in First Class

The confined setting adds a unique layer of suspense, and I wonder what research or ideas led to this choice. Did the setting influence the story's pacing or tone?

The lighthearted tone made the mystery feel inviting rather than dark, which was a nice change. I'm curious if others found the tone consistent throughout.

The interactions felt authentic, but I wonder how much of that was based on real social history or creative license. Did it shape the characters' motives?