When auctioneer Jonathan Knox finds out that a construction company has ripped up the pavement in front of city hall, then fixed the hole expecting the city to pay for it, he sees a golden opportunity. He knows that bails of paper were buried when the original sidewalk was laid back in 1906. And that within that paper might lurk some very rare stamps. So he buys the bundles, sight unseen, from the construction company. The only problem is, the bundles are missing. And when Knox starts searching for them, he uncovers a much larger plot, this one involving some old photos and a deadly game of blackmail.