Hoping to make a clean break from a fractured marriage, Agatha Christie boards the Orient Express in disguise. But unlike her famous detective Hercule Poirot, she can t neatly unravel the mysteries she encounters on this fateful journey.

Agatha isn t the only passenger on board with secrets. Her cabinmate Katharine Keeling s first marriage ended in tragedy, propelling her toward a second relationship mired in deceit. Nancy Nelson newly married but carrying another man s child is desperate to conceal the pregnancy and teeters on the brink of utter despair. Each woman hides her past...