Previously, on Sherlock: John got married, though since most of the episode consisted of Sherlock and John affirming the epic and lifelong nature of their relationship, you might be surprised to find out it was to Mary. Sherlock gave the best Best Man Speech in the history of time, complete with soppiness, awkwardness, and an attempted murder. Everyone lectured Sherlock about how Marriage Changes Everything at every possibly opportunity, we all got sad, and now we’re a bit anxious about what the future will look like for our boys. Especially since Mary’s pregnant and Sherlock left the wedding reception early and alone, because he couldn’t figure out where or how he fit in at the party.
Sadly, as soon as it seems we’ve got Sherlock back again, it’s over. Yup, His Last Vow is the Series 3 finale and then we’re all back on hiatus again even though it feels dreadfully unfair. But, first we’ve got to get through this episode. And there’s an awful lot to talk about. Let’s get to it.