Agatha Raisin is a fictional detective in a series of humorous mystery novels, originally written by Marion Chesney using the pseudonym M. C. Beaton.
She went for one glorious week on a rare family vacation to the Cotswolds — her parents preferred going to a casino/holiday camp — and she never forgot that golden holiday nor the beauty of the countryside.
[4] She lives in the village of Carsely, but her detective agency Raisin Investigations and the police headquarters where Bill Wong is based are in the nearby town of Mircester.
Even though Carsely and Mircester are fictional, they are based on real places; she does, however, frequent Evesham, Moreton-in-Marsh, Stow-on-the-Wold, Chipping Campden and other nearby towns and villages quite often.
Agatha's character in the TV series, as played by Ashley Jensen, is notably different from her depiction in the novels: she is less bitter and more vulnerable than the version in the books.