History Franchise / HerculePoirot

Being fastidiously neat, he is often wrongly "diagnosed" as [[UsefulNotes/ObsessiveCompulsiveDisorder OCD or OCPD]].

* SpiritualSuccessor: ''Series/{{Monk}}'' is essentially what Poirot would be in the 21st century.

* ''{{Series/Poirot}}'' (1989-2013), an {{Creator/ITV}} series starring Creator/DavidSuchet as Poirot, whose portrayal is considered as the most definitive one, to the point of deserving to be this page's picture. Amusingly, he first played Inspector Japp in the 1985 adaptation of ''Literature/LordEdgwareDies'' (titled ''Thirteen at Dinner'').

[[quoteright:300:[[Series/{{Poirot}} https://static.tvtropes.org/pmwiki/pub/images/817f2409971011d081d35c0fe11e19e1.jpg]]]]
[[caption-width-right:300:''[[GratuitousFrench Bonsoir, mon ami.]]''[[note]]Creator/DavidSuchet in his definitive portrayal of the detective.[[/note]]]]

** ''Evil Under the Sun'' (1982)

* {{Retcon}}: ''Literature/TheMurderOnTheLinks'' gives Hastings a love interest named Dulcie Duveen, whom he eventually marries. When he mentions his wife in a later book, Hastings calls his wife "Bella", who is actually Dulcie's twin sister and the fiancee of Jack Renaud.

** ''Lord Edgeware Dies'' (1934), The only one of the Trevor movies to still exist.

** ''Lord Edgeware Dies'' (1934), The only one of the Trevor movies still exist.

* LetOffByTheDetective: In "The King of Clubs," [[spoiler:Poirot determines that a blackmailer targeting a woman has been killed by her brother. She had claimed that a tramp was the culprit; Poirot decides not to reveal his suspicions to the police so she can marry a foreign prince.]]

* LetOffByTheDetective: In "The King of Clubs," [[spoiler:Poirot determines that a blackmailer targeting a woman has been killed by her brother, She had claimed that a tramp was the culprit; Poirot decides not to reveal his suspicions to the police so she can marry a foreign prince.]]

* LetOffByTheDetective: In "The King of Clubs," [[spoiler:Poirot determines that a blackmailer targeting a woman has been killed by her brother, who had claimed that a tramp was the culprit. Poirot decides not to reveal his suspicions to the police so she can marry a foreign prince.]]

* HereditaryCurse: In ''The Lemesurier Inheritance'', the Lemesurier family had a curse since medieval times that no first-born son would ever inherit. The curse was caused by Baron Hugo who walled up his wife and son after suspecting her of being unfaithful and that his son was not his (the wife was later proven innocent). The wife in response cursed the Baron and his descendants before she died.

* MushroomSamba: In "The Flock of Geryon", one of the protagonists infiltrating the cult has what she believes to be a genuine religious experience; it turns out later that one of the cult's rituals involves [[spoiler:secretly dosing the followers with liquid THC]].

* BluffingTheAuthorities: In the story ''The Stymphalian Birds'', an English diplomat accidentally kills a young woman's jealous husband while on vacation in Central Europe. The woman's mother knows how things happen around there and is certain that everything can be smoothed over with enough bribery, including a police officer who came by the hotel. [[spoiler:However, it's all a scam (including the "death" of the husband, who was in fact the mother in disguise); banking on the fact that the diplomat didn't speak the language, the women had called the cop about missing jewelry.]]

* PublicDomainCharacter: In the United States as the first four novels are over 95 years old, with one more entering the PD in 2024. Christie's death in 1976 means that the copyright will lapse in New Zealand and Japan in 2027. Poirot ''would'' have entered the PD in Canada at that same time, but that country's copyright term was expanded to "life plus 70" in 2020.

* PublicDomainCharacter: In the United States as the first four novels are over 95 years old, with one more entering the PD in 2024. Christie's death in 1976 means that the copyright will lapse in New Zealand and Japan in 2027. It ''would'' have entered the PD in Canada at that same time, but that country's copyright term was expanded to "life plus 70" in 2020.

* PublicDomainCharacter: In the United States as the first two novels are over 95 years old. Christie's death in 1976 means that the copyright will lapse in Canada and Japan in 2027.