Janice Law is one of my favorite contemporary short storyists, as demonstrated by the fact that this is her seventh appearance here. She is also my friend and a fellow SleuthSayer.
Edie and Cynthia are older women, two sisters with an unusual occupation. They create highly detailed dioramas of crime scenes. Usually they are commissioned by forensic conferences to show actual murders or create training puzzles.
But their current assignment is different. A private client has asked them to reconstruct the scene of an unsolved murder. What's his motive?
"It was an article of faith with [Cynthia] that a really complete reconstruction held the solution..."
The ending cleverly ties the title in. I wonder how many readers will understand that part?