Agatha Raisin: The Walkers of Dembley (Part 1)

Part one of two. The Walkers of Dembley. Agatha joins James's walking group, but ends up embroiled in a saga of lust, murder and wellies. Mystery by MC Beaton, with Penelope Keith, Malcolm Sinclair, Liza Sadovy, Rachel Atkins, Philip Fox, Ben Crowe and Paul Brooke. First aired in 2004