Edge Of Darkness and State Of Play have already been mentioned, but come episode two and we have an obvious reference to Tinker Tailor. This show is not overshadowed in such illustrious company. It is a deep, dark labyrinthine plot carried by a superb cast, each member on top of their game. The dense text will not be to everybody's taste, but for those who enjoy the likes of Bleasdale, Pinter and Potter this will probably be the first great television masterpiece of the 21st century. It is hard to pick out one performance that outshines the rest. Chiwetel Ejiofor is truly sympathetic as the cop who has to battle with memory loss to discover whether or not he is corrupt. Leslie Sharp battles to retain her fast fading memory as she descends into the Hell that is Althseimers, whilst her husband played by Christopher Ecclestone, juggles an Hogarthian cast of crooks until he can make his last deal. Rafe Spall gives a magnificent over-the-top performance as the deranged nephew of Mr. Big and then in comes Stehopen Rae as the villainous Alec Guiness style dark brother of GEORGE smiley. Absolutely wonderful!