The time is 1973. The Cold War of the mid-20th Century continues to damage international relations. Britain's Secret Intelligence Service (SIS), a.k.a. MI6 and code-named the Circus, is striving to keep pace with other countries' espionage efforts and to keep the U.K. secure. The head of the Circus, known as Control (John Hurt), personally sends dedicated operative Jim Prideaux (Mark Strong) into Hungary. But Jim's mission goes bloodily awry, and Control is forced out of the Circus, as is his top lieutenant, George Smiley (Gary Oldman), a career spy with razor-sharp senses. Estranged from his absent wife Ann, Smiley is soon called in to see undersecretary Oliver Lacon (Simon McBurney); he is to be rehired in secret at the government's behest, as there is a gnawing fear that the Circus has long been compromised by a double agent, or mole, working for the Soviets and jeopardizing England. Supported by younger agent Peter Guillam (Benedict Cumberbatch), Smiley parses Circus activities past and present. In trying to track and identify the mole, Smiley is haunted by his decades-earlier interaction with the shadowy Russian spy master Karla. The mole's trail remains cold until maverick field agent Ricki Tarr (Tom Hardy) unexpectedly contacts Lacon. While undercover in Turkey, Ricki has fallen for a betrayed married woman, Irina (Svetlana Khodchenkova), who claims to possess crucial intelligence. Separately, Smiley learns that Control narrowed down the list of mole suspects to five men. They are the ambitious Percy Alleline (Toby Jones), whom he had code-named Tinker; suavely confident Bill Haydon (Colin Firth), dubbed Tailor; stalwart Roy Bland (Ciar'n Hinds), called Soldier; officious Toby Esterhase (David Dencik), dubbed Poor Man; and Smiley himself. Even before the startling truth is revealed, the emotional and physical tolls on the players enmeshed in the deadly international spy game will escalate.
Was that summary confusing enough for you? I am not going to lie. I didn't even finish watching this movie because I was so bored and had no clue what was going on. This kind of movie is so not my cup of tea. It's one of those political espionage movies with no action and it was just a whole lot of talky talky. These are second only to old english period pieces as far as killing my attention span.
My recommendation of this movie shouldn't matter. I'm sure that this is a good movie with good performances but I just didn't care at all.