It is the spring of 1923 and the Honourable Daisy
Dalrymple is on her way to a stately home in Scotland to
research her next article for Town and Country. On board
the Flying Scotsman, the famous London-to-Edinburgh train,
Daisy meets an old schoolfellow, Anne Breton. Anne, along
with all of her relatives, is en route to visit the
deathbed of the family scion and notorious miser, Alistair
McGowan. As it currently stands, Alistair's will leaves
the entire family fortune to his brother Albert, and the
rest of the family is rushing to his side, each hoping to
convince him to change his will in their favor. Daisy,
meanwhile, has her hands full taking care of Detective
Inspector Alec Fletcher's young daughter Belinda, who ran
away from home and stowed away aboard the train. She
barely has time to take notice of the intricate family
feud taking place all around her - that is, until Albert
McGowan is found murdered on the train and Daisy is
surrounded by an entire family of suspects.