This was from last week's holiday reading - probably should mention that it went particularly well with a very good Pyrenees Cab Sav.
From the Blurb:
Can you become someone else without the world noticing?
When David's wife confesses that she was once a prostitute, the revelation doesn't disturb him - he considers it simply an error of youth. But the following night David collapses from a rare brain disease and within a few months his world is turned upside down.