Poirot - Season 3 (1991)

A mining entrepreneur hires Poirot to solve the brutal murder of his daughter and the theft of her jewels aboard the express train to Plymouth

Poirot realizes that a murder is being plotted, and with the help of Hastings' latest hobby, he sets out to prevent it.

Poirot is drawn into a case where a man is found dead on the grounds of his estate, apparently frightened to death by the spirits that haunt it.

Poirot helps Chief Inspector Japp try to find a jewel thief, but is sidetracked when a bewitching Russian countess arrives on the scene.

Poirot is asked to protect a woman from her violent husband, but events take a turn when the husband soon becomes the victim of a gruesome murder.

Poirot reluctantly agrees to help an Egyptian prince recover a valuable royal ruby that was brazenly stolen from him during the Christmas holidays.

Poirot and Hastings attend the Victory Ball, a popular costume party. During the festivities, one of the guests is found stabbed to death, and another succumbs to a drug overdose the next day.

Poirot is taken ill during a weekend shooting party, which ends when the unpopular host is found murdered in his study.