Penelope Keith stars as Agatha Raisin in four more full-cast BBC Radio 4 dramas. Agatha Raisin, the Columbo of the Cotswolds, is back in four more full-cast dramas based on the bestselling books by M. C. Beaton. The Potted Gardener - When a garden festival is announced, the village of Carsely is gripped with enthusiasm for water features and mulch. But the Grim Reaper is in the garden. The Gardener's Legacy - When her arch rival at the garden festival is found hanging from her conservatory roof, Agatha is determined to dig deep and root out the wrongdoer. The Walkers of Dembley - Keen to get closer to James Lacey, Agatha joins his walking group. But she is soon embroiled in a saga of murder, lust and Wellington boots. A Marriage of Convenience - Agatha and James are hired to investigate the murder of a militant rambler. They go undercover as a married couple, but it's a marriage made in hell.