Violin virtuoso to his neighbours, terrible tenant to his landlady, invaluable embarrassment to Scotland yard and thorn in the side to London’s nefarious underworld, Sherlock Holmes is back at it again. It’s our latest glimpse into the world of the calculating consulting detective, and we can see that this time around things are going to be a lot darker in tone. Sherlock’s past is coming back to haunt him and the normally irascible detective is looking ruffled for the first time. With Toby jones’ Culverton Smith to contend with, could this be one mystery too many for Baker Street’s finest?