"Some people have a taste for murderβ¦"
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