At the beginning we see the murderer but we don't know anything about the crime. Our criminal is abused and humiliated by his colleagues and nobody has ever asked an opinion to him. This episode reminds me a Christian Slater's film called He Was a Quiet Man. The two are similar in many ways.
Anyway, this is a definitely a different episode. A little change of story telling can be good for one episode. Less Greg, no Sara. And I didn't feel right about that. Not a great episode but a good one. And I have to say, the actor who played the criminal is a right choice for the role. He does his job very well.