Is it what we know that traps us, or drives us, or what we don’t? It’s the trouble with keeping something from someone: you become a slave to the knowledge, more so than that person in their ignorance of it (blissful or otherwise). And of course in the world of a private detective it’s the matrimonial work that dominates. But this is what it all comes down to: It’s the shades of knowledge, and the lack of freedom those boundaries impose that shape the way we live.
It’s a lesson in relevance from a writer’s point of view. The telling of a lifetime in the space of a day necessarily touches only on what reflects, highlights or impacts the main thread of the story. The layering of moments reinforces that relevance, and acts like a ratchet on the tension too. Small wonder that a man whose livelihood is darkness and shadows longs ultimately for a crisp, cloudless November sky and the titular clear light of day.