Sherlock: 10 Biggest Plot Twists

10. It’s All In Sherlock’s Head – The Abominable Bride

Unlike the other twelve episodes of Sherlock, ‘The Abominable Bride’ did not belong to a particular series. However, despite the Victorian setting, it eventually became clear that this one-off special was in fact relevant to the rest of the show.

After almost an hour in Victorian London, ‘The Abominable Bride’ returns sharply to the present day. It is then explained that the case of Emelia Ricoletti is an unsolved mystery stored inside Sherlock’s mind, and that he is aiming to solve said mystery in the hope it will reveal the truth about Moriarty’s death in the present day.

As odd as this plot twist is, there’s no denying it caught audiences off guard. What’s more, it doesn’t go totally beyond the realms of the show. Sherlock’s mind palace had been used in a number of previous episodes, and given he had also taken several substances beforehand, the mental exploration of the case of Emelia Ricoletti isn’t totally ludicrous.