Charles Bunbury is the bumbling, affable chairman of two hundred year old private bank, Tufton's. The only problem is, he knows nothing about banking...

Discovering that a rogue trader has left Tufton's skating on thin ice, and with rival American and Japanese banks circling like sharks, he needs to be like a wolf of Wall Street; unfortunately, Charles is more the Labrador of Liverpool Street. So when he puts everything on the line in a risky attempt to secure Tufton's future, he ends up breaking the bank, losing his wife Penelope's family fortune - and her in the process.

At rock bottom, Charles's only hope of saving the bank and winning Penelope back, is a homeless, self trained financial wizard Oscar, the faint possibility of help from his estranged, anti-capitalist daughter, Annabel and his dog, Taxi... It's not much of a team. And they don't have much of a plan. So it's probably just as well that Charles doesn't understand how shorting and hedging might win him the day. But then again, he never did.