Wanda, a con artist, tries to double-cross her lover and the two members of the gang with whom she conducts a diamond heist. Her plan goes awry when she falls in love.
Police officer Nicholas Angel is known to be the best across London. His seniors, who are jealous of his achievements, transfer him to a remote village where he encounters various challenges.
The explosion of a German bomb left over from World War II unearths a long-buried cellar containing both fabulous riches and a previously unknown royal charter from King Edward IV that cedes the surrounding land to the last Duke of Burgundy.
Miss Shepherd is an elderly woman who lives in a sorry-looking van. Alan Bennett, who at first is indifferent towards her, forms an unlikely bond with her.