Howard, proving that idiots aren't necessarily bereft of imagination in extreme circumstances, invents a local pest called a "stoneworm" in one of his lamest efforts yet to fool Pearl. But wonders will never cease - soon people all around town are wondering if their homes are infested.
Casts:
Peter Sallis, Frank Thornton, Jane Freeman, Jean Fergusson, Robert Fyfe, Juliette Kaplan, Sarah Thomas, Jean Alexander, Mike Grady, Brian Murphy, Burt Kwouk, Tom Owen, Christopher Beeny, Russ Abbot, Josephine Tewson, Barbara Young