WARNING: MAJOR SPOILERS FOR ‘THE LYING DETECTIVE’ WITHIN. PROCEED WITH CAUTION.
Yesterday’s middle episode of Series Four, titled ‘The Lying Detective‘, brought with one one show-stopping twist. It turns out that Sherlock and Mycroft don’t have another brother, as was heavily hinted at – they have an evil sister, Euros, as played by Sian Brooke.
This isn’t an off-the-wall decision by showrunners Steven Moffat and Mark Gatiss, as they have actually been playing with the idea of Sherlock having a sister since the very first series of the show. Here’s what Mark Gatiss had to say about it at a BAFTA screening of the episode:
“It started as a joke years, years ago. Right from the beginning of the first season, there was a line in ‘The Great Game’ when we were sort of sketching in the idea of the Holmes family and there was going to be a line about Mycroft being a member, Sherlock admitting that he was cleverer than him and then him kindly saying, mind you…my sister… It was absolutely cut off, and that’s really where it all began. [At the time] we thought, we won’t do too much. And thank god we didn’t, as it gives us this place to go.“
“The scene where Euros finally unveils herself, we’ve been sitting on that since we sat talking about it on the production bus… when we were shooting His Last Vow. We’ve been talking about it ever since then, so it’s kind of weird that in few hours time we won’t have to kill people to keep the secret.”
On how they endeavored to keep Euros’ identity a secret for the audience, he had this to say:
“She doesn’t actually look all that different, but it’s always to try and keep you looking somewhere else. That’s the trick isn’t it? In terms of the frame, the shots…it’s your first look at Toby Jones as Culverton Smith, so your eyes drift to him…it’s your first look at druggy Sherlock Holmes, your eyes drift to him…you’re constantly looking. When you go back and look at that – talk about plain sight, right there! That’s two different women, and there’s one woman playing them.”
Did you guess the twist before it happened? Let us know in the comments below!