Life in London's End End in the 1950's was tough. The brothels of Cable Street, the Kray brothers and gang warfare, the meths drinkers in the bombsites - this was the world Jennifer Worth entered when she became a midwife at the age of twenty-two. Babies were born in slum conditions, often with no running water. Funny, disturbing and moving, 'Call the Midwife' brings to life a world that has now changed beyond measure.