Hercule Poirot sort of obsessive-compulsive" in Poirot. As mentioned in "Curtain" and "The Clocks", he is fond of classical music, particularly Mozart and Bach. In "The Mysterious Affair at Styles", Poirot operates as a fairly conventional, clue-based and logical detective; reflected in his vocabulary by two common phrases: his use of "the little grey cells" and "order and method". Hastings is irritated by the fact that Poirot sometimes conceals important details of his plans, as in "The Big Four". In this novel, Hastings is kept in the dark throughout the climax. This aspect of Poirot is less evident in the later novels,
Agatha Christie's Poirot documentary (2013) in which David Suchet attempts to unravel the mysterious appeal of Hercule Poirot and how he portrayed him. It was broadcast in the United Kingdom on the same evening as the final episode "Curtain". Suchet visited Greenway, Agatha Christie's summer home, recollecting how he met her daughter Rosalind and her husband Anthony Hicks for their approval before he began filming. He now meets Christie's grandson Matthew Pritchard who recounts how his grandmother found the character amongst Belgian refugees in Torquay. A visit to the permanent Poirot exhibition at Torquay Museum to which he presented the cane he used