"There are three of them and Alleline......." Quite possibly the greatest television drama of them all. There are no pyrotechnics or snappy dialogue. If you are watching for either, you will be disappointed. This is a very slow burning, gripping game of chess that enthrals from the start. Subtle and nuanced, with a plot that grabs you by the brain and never lets go. ALL of the performances are top notch, with Alec Guinness giving a superb performance as Smiley (the most unlikely hero of them all) and Beryl Reid, Ian Richardson, Hywel Bennett, Michael Jayston, and Alexander Knox also magnificent. Special mention must go to Ian Bannen as the haunted, patriotic Jim Prideaux who acts his socks off while his character loses so much as the plot unfolds. Nothing short of a masterpiece.