Homicide: Life on the Street: The Hat on AllMovie

While traveling to Harrisburg, PN, to extradite suspected murderer Rose Halligan (Lily Tomlin), Baltimore homicide detectives Lewis (Clark Johnson) and Kellerman (Reed Diamond) bide their time and relax as much as possible. Their lethargy proves to be their undoing when Halligan slips through the cops' fingers while they make a pit stop at a popular diner. Meanwhile, an important piece of evidence turns up missing from Brodie's (Max Perlich) surveillance tapes, and Giardello (Yaphet Kotto) misses out on a major promotion.