Doors Open by Ian Rankin

Mike Mackenzie is a self-made man with too much time on his hands and a bit of the devil in his soul. He is looking for something to liven up the days and settles on a plot to rip-off one of the most high-profile targets in the capital - the National Gallery of Scotland. So, together with two close friends from the art world, he devises a plan to a lift some of the most valuable artwork around. But of course, the real trick is to rob the place for all its worth whilst persuading the world that no crime was ever committed.