There's a review of the ShadowGuard Neverwinter Nights premium module from BioWare at Ladies of Neverwinter. Here's a snip:

You are the child of Okaris, Magistrate of the imperial city of Ghaarak along the disputed northern frontier of the Sharakhan Empire. Your astonishing work at the Imperial Academy has drawn the attention of the ShadowGuard, an elite group of secretive Imperial agents that know no failure. Your veil of comfort will soon be torn away and you will be left to solve the mystery of what lies ahead.

There is an initial monologue by the PC that gives more detail on the above background. Though a module that defines the characters background could be limiting, the module does a good job of allowing the player to decide the personality of the PC, and how they have reacted to the events that have so far passed in the PC’s life. This offers a good balance of giving the player freedom to play the kind of character they’d like while at the same time giving the story a personalized feel. The downside is, of course, that those who want to play something very strange are limited to this vision – playing a howling barbarian whose parents were killed by winter wolves when he was two years old is right out. However, the story is much richer for the sacrifice.

Read the whole thing (http://www.ladiesofneverwinter.com/news/viewarticle.php?ArtId=16) at Ladies of Neverwinter.