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.
as Agatha
as Mabel
as Wade
as Daphne
as Travis
as Randolph
as Zaki
as Franklin
as Pamela
as Detective Inspector Dicks
as Sir Arthur Conan Doyle
as Rosalind
as Postmaster Wilson
as Mr. Todd
as Florence Nightingale Shore
as Sir Hugh Persimmion
as Carlo
as Archie
as PC Spencer