Lovejoy is in hot water for not paying the school fees of his teenage daughter, Vicky. Meanwhile (and much to Eric's disgust) another schoolgirl asks the firm to sell some erotic drawings for her. When Lovejoy sees the same girl being threatened by a man at the school, he decides there's more to the story than meets the eye. He also manages to vex Susan, his former wife, as they try to cope with their daughter's problems.
Matthew Davenheim, a rich banker, disappears on a walk from his country house to the village post office, and Inspector Japp of Scotland Yard is put onto the case. Poirot, who has developed an interest in conjuring tricks, bets Japp five pounds that he can solve the mystery without leaving his apartment.
Meanwhile, Poirot has acquired a parrott - which he finds has its uses.
Playboy architect Michael Gifford is found strangled in his car, and the only clues are a car-park ticket and his diary. Morse and Lewis uncover a love triangle involving the murdered man, and the list of suspects grows.
Meanwhile, Morse considers asking Grayling Russell for a date.