Benefit fraud investigators are on the trail of a family of Sicilians who are still claiming benefits for their father, even though he has been dead for six years. But with most of their suspects supposedly living abroad, it is a tough case for the Midlands team. In Surrey, a man and woman have to convince the Department for Work and Pensions that they are no longer a couple, even though they still live together with their children under the same roof. And the Murray family go through the lengthy ordeal of proving officially that their severely disabled daughter is still eligible for the Disability Living Allowance.