What will Sin City 2 be about?

We already knew that the second Sin City movie will feature some of the other stories from Frank Miller's books, but the man has also confirmed that he is working on some new stories. While these stories are primarily intended to be made into new comic books, at least one of these stories will also make it to the big screen. In this storyline, according to Wikipedia, 'skinny little' Nancy Callahan will go out on a killing spree, murdering the remaining members of the Roarke family that was more or less responsible for Hartigan's death in the first movie. More on this as it develops...