From mere co-talkshow guests to being off-screen roommates? Things get steamier and awkward between a psychologist and novelist in their entanglement.

A life as dramatic as her work. Lucy Worsley discovers the origins of Agatha Christie's macabre magic - and with some compelling characters, uncovers carefully concealed secrets.

This four-part series tells the stories of the landscapes, towns and cities which inspired four of the UK's greatest writers - Jane Austen, Thomas Hardy, Charles Dickens and the Brontes.