OK, so here's the bare bones of what I'm thinkin' for this:
Converging folds in time.
The final hours of separation between dual universes (who, naturally, have been in mortal denial of each other since the beginning of time).
The reality-altering decision that must be made by the ultimate Keeper of Time - to potentially end time and boot himself out of a job.
All centering around a seemingly simple clock repair shop in Montmartre, Paris, France.
Ya know, the basics.
parisfranceclocksclock shopmontmartredoorpaneswooden doorkaren hutton