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That's it for Cowley, then. Mr. Bright begins the episode announcing the station's closure, to a welcome return of an opera soundtrack. The news confirms Fred in his plans to retire. Fancy, in love with Trewlove, has bought a ring. Trewlove wants to transfer to the Yard.
At first, I thought Morse was taking Thursday's retirement so hard that he'd quit the police force, but it turns out he's going undercover as a teacher at a boy's school. He's not alone. Trewlove is along to play Mrs. Morse, a narrative stretch that does actually push the characters in interesting directions, but still feels implausible.