Who is Sherlock Holmes?

Who am I? Where am I? What am I doing here? What happened? That's all Dr John Watson could think about all those questions wouldn't leave his head. But what will happen when the mysterious Sherlock Holmes appears at the end of his bed?
Who is Sherlock?

Disclaimer: I do not own Sherlock, or any of the characters from the show.
Disclaimer: I do not own any of the photos used in this story.