Now that the villainous "Lord Blackwood" has met his end, "Sherlock Holmes" and "Dr. Watson," as the latter prepares for his marriage to "Mary," find themselves in a more peaceful state. However, typical of Victorian London, another wave of crimes soon emerges, involving individuals of considerable influence within the government. To complicate matters further, their previous adversary seems to have returned from beyond the grave and is back to his wicked ways. It doesn’t take long for Holmes to notice a link with the Grand Lodge, quickly pulling him into an intricate sequence of events that threaten the stability of the British Empire. And just when things get complicated enough, "Irene Adler" reappears, leading one to suspect she has her own agenda. While some of the computer-generated imagery hasn't aged well, this remains a uniquely crafted crime story that provides Robert Downey Jr. with an opportunity to portray a clever and often witty version of Sir Arthur Conan Doyle’s meticulous detective. His detached approach frustrates his friend, "Watson," even more so than it does Scotland Yard’s “Lestrade,” who is performing well here. Jude Law delivers an adequate performance, but Rachel McAdams doesn't have enough screen time to make a significant impression; the film ultimately relies on Downey Jr., some genuinely convincing settings, Hans Zimmer’s score, and a palpable sense of mysticism and superstition set against the backdrop of London’s dark and dismal streets. It is a well-made production that maintains a steady tempo, withholding information until the very end – but can "Sherlock" prevent disaster, rescue everyone involved, and ensure the wedding goes ahead?

Source on TMDB