Tod in der Villa Saturn

The setting feels so immersive and authentic—I'm curious whether this was based on real events or carefully researched fiction. Did the historical context influence the story's twists?

The mansion's descriptions made the mystery so vivid and claustrophobic. I kept wondering how much of that was crafted to evoke a specific mood or if it grew naturally from the story.

The era's social norms and customs really enriched the narrative, but I wonder what prompted the author to pick this particular time and place for the mystery.