A street rat frees a genie from a lamp, granting all of his wishes and transforming himself into a charming prince to marry a beautiful princess. But soon, an evil sorcerer becomes hell-bent on securing the lamp for his own sinister purposes.

After finally catching serial killer and occult 'sorcerer' Lord Blackwood, legendary sleuth Sherlock Holmes and his assistant Dr. Watson can close yet another successful case. After his execution, Blackwood mysteriously returns from the grave and resumes his killing spree, Holmes must take up the hunt once again. Contending with Watson's new fiancée and the dimwitted head of Scotland Yard, the determined detective must unravel the clues that will...