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Basil Fawlty (John Cleese) discovers that one of his guests has smuggled an attractive young woman into his room, and Basil, more than a bit jealous, is determined to catch him red-handed. Meanwhile, Basil learns that two of his guests, Mr. and Mrs. Abbott (Basil Henson and Elspet Gray) are doctors -- and that the husband is a psychiatrist. A nervous Basil goes out of his way not to seem eccentric around the Abbotts, though the results produce just the opposite effect.