With its major character introductions already out of the way, this second episode of BBC's Sherlock is able to focus more on defining roles and settling in. Holmes and Watson are already developing a prickly, sarcastic working relationship that's not without precedent but still somewhat befuddling. Watson, the kind-enough everyman, is so constantly on the pointed end of Sherlock's icy pokes and prods, it's easy to question why he sticks around - that is, until the duo lock in and begin functioning together near the end of the chapter. Even at their worst moments, though, the two work as a good balance for each other: Holmes as the brilliant, socially-stunted brains behind the operation and Watson the more personable, common sense-minded counterweight. The production values of this episode aren't quite up to those of the premiere, with a few major scenes looking very much like they were shot for TV, but it does manage to retain the cool, unique editing techniques and visually-indicated clues I liked so much in its debut. In terms of the plot, the B-level murder mystery does lead to a couple of surprisingly good scenes, but ultimately doesn't measure up to the high standards set by the first episode. Still, it's fine material that's much, much better than the Downey-helmed American interpretations.