the key is from Swanns Girlfriend??
I saw the movie yesterday (again) on TV in the Netherlands. In the version I saw the inspector tells Margot and Mark that the key fits the apartment of Swann's GIRLFRIEND. I realy thought I understood the story (which took a heavy toll on my mind) until then (with the key fitting Swann's apartment), but when he said "the apartment of Swann's GIRLFRIEND" I felt totally lost.
Anyone?