Alastair Campbell meets some of the increasing number of Britain's middle-class professionals for whom one glass of wine after work is never enough, and asks if we all need to reassess our relationship with drink. Alastair, Tony Blair's former closest adviser, knows from bitter experience the true cost of excessive boozing: his alcoholism contributed to his nervous breakdown. With nearly 9,000 people dying from alcohol-related diseases every year and leading medical experts describing it as a health crisis, Campbell ventures into the world of Britain's hidden alcoholics and asks how much is too much.