The Kilhungers are a brother and sister psychiatrist team whose secret miracle cure has kept their patients Ed, Carl, Warren and Linda coming back for more. But what the patients don't know is that they're not the only ones who have trouble leaving this place. And unfortunately, the voices they hear in their heads might not be imagined after all. The inhabitants of this waiting room may not always get along and it can sometimes get a little crowded, but at least its home.