The author is William D. Cohan and the subtitle is A Tale of Hubris and Wretched Excess on Wall Street. It's the story of the recent history of Bear Stearns. Here is an NYT review. Here is a Business Week review. Here is an L.A. Times review; note that all reviews are very positive.
I've read only fifteen or so pages and I'm already convinced it's one of the must-read books relevant to the financial crisis. The other two books which come to mind are Lords of Finance and The Partnership, neither of which covers the crisis directly but both offer essential background.