Foyle returns from the U.S. and is soon approached by MI5, who want to recruit him to investigate a Soviet spy ring operating at the heart of the Establishment. Sam's husband has parliamentary ambitions.moreless
The Inkpen family has bought back its ancestral home, Inkpen Manor at Midsomer Deverell, and they plan to turn a village Memorial Garden on their land into a tea shop. This causes consternation in the village, and the Bennetts (who previously owned the manor and founded the Memorial Garden) lead the opposition. Then young Fliss Inkpen-Thomas is found dead in the Memorial Garden with her skull smashed in, and a few days later her mother Elspeth dies of poisoning, with the possibility of suicide firmly denied by her family and friends.
Barnaby investigates the deaths and finds older and more deep-seated motives for murder lurking in another ancient family.