Audio Drama Wiki

Betrayal (aka Single Spies): An Englishman Abroad and A Question of Attribution
Two plays by Alan Bennett
Directed by Susan Roberts
BBC World Service 29/10/1994

A critically acclaimed double bill of Alan Bennett plays, adapted for BBC Radio.
An Englishman Abroad focusses on Guy Burgess, while A Question of Attribution has another of the Cambridge spies as its central figure: Anthony Blunt, who remained in England and whose identity as a spy was only made public much later.