The real story behind the ITVX drama series A Spy Among Friends. This documentary on Kim Philby and his fellow traitors in the Cambridge spy ring reveals the worst spy ring in British history. 　　From Cold War Washington to contemporary Moscow, Beirut backstreets to the salons of Buckingham Palace, this story is as gripping as any thriller. The treachery of the privileged Philby, ... (展開全部)