Secure children's homes look after some of the country's most vulnerable youngsters. Largely run by local authorities, they provide safe accommodation for children placed on custody grounds or for welfare reasons because they present a danger to themselves or others. The demand for places is rising but the number of beds is falling. So where does that leave those they are meant to cater for? With the government currently conducting a review into the system, File on 4 gets rare access to one home in the Midlands to meet children and staff; and talks to those struggling to find places for children across the UK. Reporter: Fran Abrams Producer: Emma Forde.