Just finished this game and absolutely loved it. This is a movie-like mystery solving game where you spend five days searching for clues and talking to people to discover the killer(s). This is *not* a hidden object game (in case that's what you are looking for)--it is a "large file", complex, engaging mystery adventure game in which you have to guide Holmes and Watson to look for clues and interrogate suspects in order to piece together what really happened. The mix of exploring new places, looking for clues, and talking to people, and thinking about how they all fit together is a lot of fun and very engaging. The ending scene where Holmes reveals what really happened and who is guilty was perfectly done and had me on the edge of my seat.
I am already downloading my next Sherlock Holmes game.
Enjoy!
Note: There is one part where it is recommended to save your game before attempting it, as Holmes can get "caught": the part where he has to hide from the guard and his dog at night. Also, I recommend using UHS hints if you get stuck, as they reveal gradual hints without giving it all away like normal walkthroughs do.