Credit Suisse and UBS: Gut takes a tumble

Did Nikolaus Senn, chairman of the embattled Union Bank of Switzerland, seize a merger proposal from CS chairman Rainer Gut and use it as a crude weapon against his bitterest enemy and major shareholder Martin Ebner? Here's the story whose climax a third of all Zurich inhabitants watched on television. But will it have a happy ending? And who pairs off with whom? David Shirreff reports