I'm working on a new conceptual short-film, and unfortunately, have hit a pretty terrible case of writers' block. I've got an extremely basic concept, but I've yet to flesh it out. The concept is this: Two people are sitting at opposite ends of a long table. One of these people can only communicate through writing letters, which she pushes across the table into the hands of the other person. The other person doesn't understand why she is doing this, but plays along with her game. After this point, I'm sort of stumped. I need a reason that this person can only communicate through writing, and a solution. She doesn't necessarily have to be "fixed", but any ideas where to take this story would be greatly appreciated!