The Sign of Three
“These tales of ratiocination owe most of their popularity to being something in a new key. I do not mean to say that they are not ingenious — but people think them more ingenious than they are — on account of their method and air of method. In the “Murders in the Rue Morgue”, for instance, where is the ingenuity of unravelling a web which you yourself (the author) have woven for the express purpose of unravelling? The reader is made to confound the ingenuity of the supposititious Dupin with that of the writer of the story.” – Edgar Allen Poe
The basic dramatic engine of Sherlock, by this point, has become the cathartic click as the puzzle box’s mechanisms slide into place in a moment of triumphant Aristoteleanism. Over ninety minutes, this produces an interesting effect. Because ninety minutes is also more or less your basic length for a film, there is a tendency to describe Sherlock in those terms – as periodic triptychs of Sherlock Holmes films. With two thirds of the episodes set as event episodes (that is, premieres or finales), it’s easy to get swept up in this.
Nevertheless, Sherlock is unmistakably television. The Sign of Three is a prime example – it is well aware that it has no obligation to make a stirring case for its scale and scope. Its end is a self-consciously subdued homage to The Green Death, it contains not a single overt tease of Magnusson. It is confident that people who are watching it will probably do so again in a week, and so does not engage in the sort of sprawling, ambitious cliffhanger that films (and, to be fair, series finales) do to hold interest over the course of months and years.
Perhaps more importantly, it shares Doctor Who‘s willingness to push against traditional dramatic structures. If one pauses Sherlock to ask “how much time is left,”one is almost always slightly surprised – the big plot beats never happen at quite the moment they’re scheduled. The dramatic climax of The Sign of Three comes a full ten minutes from the end, which isn’t unheard of, except that the last ten minutes are all quite subdued and tension free, as opposed to an exploration of the consequences of the climax or setup for something else. The plot is based around a pair of extended flashbacks that don’t seem connected to each other or the larger episode until the end. Instead there’s the continual anticipation of resolution – of the moment where things slot into place and the seemingly disjointed plotting is suddenly revealed as the precise clockwork of dramatic unity.
The Sign of Three, in other words, shows Sherlock as a well-oiled machine. Sherlock’s best man speech – contributed largely (and obviously) by Moffat – is a marvel.…