Richard is on the way to a dinner with his fiancée, Jessica (not "Jess") when a young girl falls to the sidewalk in front of them, obviously hurt. Despite Jessica's threats of ending the engagement, Richard feels he must help. The girl, named Door, asks not to be taken to a doctor or hospital so Richard brings her back to his flat where she recovers. Because of this act of kindness, Richard is forced to endure visits from the vile Mr. Croup and Mr. Vandemar, to deal with the roguish Marquis De Carabas, and to converse with a rat. Worse still, his friends and co-workers suddenly don't seem to recognize him. (thetvdb.com)