Grace is called to a crime scene that happens to be the home of Paul Shapiro, whose father died in the bombing of the Murrah Federal Building. Since then, Paul has been in and out of trouble. At the crime scene, there is blood everywhere, but no body. Ham has separated from his wife and moved out on his own, giving him and Grace more freedom to be together. They wind up in a ketchup-and-mustard situation that soon becomes a running joke in the squad room.