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