Grace Dent presents untold stories of modern Britain. Today, a tale of homelessness in Poole as we follow the life of Mel.

From a career in high finance, Mel has ended up sleeping rough in the stairwell of a multi storey car park. We follow her daily - and nightly - routine as she tries to survive with no fixed abode.

Events conspire to raise the stakes for Mel and the need for a roof over her head becomes more urgent than ever.

Producer Neil McCarthy.