The theatre is rich in dramas about the Cambridge spies. Alan Bennett â in A Question of Attribution and An Englishman Abroad â and Julian Mitchell in Another Country , have looked at them sidelong. Characters and motives are illuminated obliquely: through painting, schooldays and startling encounters â as if the plays themselves were undercover. In his new play, Ben Brown approaches these chaps, and the British establishment they left, head on. Speculations are laid out as if Greene were a chat-show host teasing information out of a starlet A Splinter of Ice imagines the conversation Graham Greene and his former MI6 colleague, the double agent Kim Philby, might have had when, in 1987, they met for the first time in 30 years. Alastair Whatley and Alan Strachanâs production was filmed on the stage of the Everyman theatre in Cheltenham; designer Michael Pavelka plausibly creates Philbyâs Moscow flat in autumnal yellows and browns; the zithering them tune from