England, December 1926. Although her personal life is in tatters, the famous writer Agatha Christie decides to leave everything behind to help unravel an unsolved murder committed on a train six years ago, unable to imagine the disproportionate consequences that such a selfless act will cause.
In 1962 England, a young couple finds their idyllic romance colliding with issues of sexual freedom and societal pressure, leading to an awkward and fateful wedding night.
Miss Havisham, a wealthy spinster who wears an old wedding dress and lives in the dilapidated Satis House, asks Pip's Uncle Pumblechook to find a boy to play with her adopted daughter Estella. Pip begins to visit Miss Havisham and Estella, with whom he falls in love, then Pip—a humble orphan—suddenly becomes a gentleman with the help of an unknown benefactor.
Celebrating her upcoming marriage, Jo invites her childhood friend, Scarlett, on a girls’ trip to a country manor. But despite drifting apart as adults, unresolved feelings still linger between them whilst the rest of the group enjoys the weekend away.