A Black woman's meticulously crafted life of privilege starts to unravel when two strangers show up in her quaint suburban town.

In 1994, a toddler disappeared from a small Welsh village, never to be seen again. 23 years later, in London, the mother of rising cello star Matilda Gray commits suicide, without apparent reason. Among her possessions, Matilda discovers tantalising evidence, linking her mother to the Welsh girl's disappearance all those years ago.

A look at a few chapters in the life of Poppy, a cheery, colorful, North London schoolteacher whose optimism tends to exasperate those around her.

From England to Egypt, accompanied by his elegant and trustworthy sidekicks, the intelligent yet eccentrically-refined Belgian detective Hercule Poirot pits his wits against a collection of first class deceptions.