Agatha Christie's Poirot

When investigating the murder of an elderly psychiatrist, Poirot crosses paths with crime writer Ariadne Oliver, a friend from his past. Together they look into two historical murders in hopes of discovering the psychiatrist's killer.

Poirot faces a dangerous group of dissidents as the threat of world war looms large. He seeks the help of friends to stop the group from continuing their spree of violent murders.

Novelist Ariadne Oliver begins to feel she's being manipulated after being hired to create a murder hunt as an amusement for the Devonshire summer fête. Poirot tries to determine who murdered the girl playing the victim.

While in pursuit of an art thief, Poirot is led to a snowbound hotel in the Swiss Alps. He is met with a series of mysteries and the reappearance of a familiar face from the past.

An ailing Poirot and his old friend Captain Hastings travel to Styles, the location of their first mystery almost three decades earlier, to try to stop a serial killer from continuing their spree.