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When the health department gives the Fawlty Towers kitchen a surprise inspection, Basil (John Cleese) is informed that the sanitation is far below acceptable standards and is given 24 hours to get the place ship-shape. Basil assigns his staff to give the kitchen a thorough cleaning, but when he goes looking for Manuel (Andrew Sachs), he discovers the waiter has been keeping his pet rat in the kitchen. Manuel insists the animal is a Siberian hamster, but Basil knows the truth and demands he get rid of it. Manuel gives the rat to Polly (Connie Booth), but instead of taking it home, she stashes it in a storage shed in the back; the rat soon finds its way back into the hotel, with Basil hot on its trail.