The adventures of Agatha Christie's famous Belgian detective, Hercule Poirot, adapted for television over more than twenty years and covering every Poirot book and short story ever written. This enormous lifelong project starring David Suchet takes the eponymous detective from England to Egypt, from country estate to weekend lodge, from dinner party to train ride, with his good friend Captain Hastings at his side, solving some of the most celebrated murder mysteries ever conceived.
An archaeologist dies of a heart attack shortly after opening an ancient Egyptian tomb, but his widow thinks there is dirty work at the crossroads and calls in Poirot. Poirot dismisses the idea of a mummy's curse, and by risking his own life he smokes out a murderer.
A chemical plant in 1930s Germany, threatened British business interests, murder - in pursuit of the truth, Poirot's secretary, Miss Lemon, successfully hypnotizes the murdered man's widow.
Friends and family gather at a dinner-party to mark the second anniversary of a woman's death. The atmosphere is so charged that one almost expects the victim to come back from the dead. Meanwhile, Poirot is caught up in a coup d'etat and arrested as a spy, which prevents him from solving a murder at a French restaurant owned by an Italian in Buenos Aires... but all is not lost.
Poirot has to execute the final wishes of an old friend who has been killed.
Hastings's friend Dr Hawker receives worrying news about a patient, Count Foscanti, and the body is found of a man beaten to death. Hastings's Italian roadster and Miss Lemon's new admirer turn out to have connections with each other and with the murdered man, and Poirot finds his investigation leads him into the gangland world of London's Little Italy. The story culminates in a deadly car chase.
Poirot returns to Belgium for the first time since the Great War, and there he revisits a twenty-year-old murder mystery that was never officially solved. We flash back to an eager young detective on the Brussels police force, working to serve a young woman who has come to him for help. In the process, the pin the older Poirot wears is identified.
Poirot loses out on a wall mirror at auction to obnoxious art dealer Gervase Chevenix. Chevenix believes he is being cheated by an architect, John Lake, and offers Poirot the mirror if he will investigate the case. Poirot later meets the eccentric Mrs Chevenix, who claims her spirit guide, an ancient Egyptian named Saphra, has warned her of an imminent death. Her prophecy comes to pass and Poirot is faced with an apparent suicide which he strongly suspects is murder.
Mrs Opalsen's famous pearls are stolen, and Poirot is happily on hand to investigate. A complex theft calls for a sophisticated solution. Unfortunately, Poirot is hindered everywhere he goes by being mistaken for 'Lucky Len'.