A young American widow is mysteriously drawn to a historic castle in the Scottish Highlands and finds herself at the center of a 200-year old ghost story.
Beautiful wealthy American businesswoman meets eccentric Irishman on an Italian train, who sets out to woo her. What ensues is something neither imagined happening.
After a chance meeting and an indiscreet conversation, childhood friends Tommy Beresford and Tuppence Cowley become involved in a convoluted intrigue led by a mysterious man known simply as Mr. Brown.
When two mysterious deaths mar an otherwise pleasant weekend in the English countryside, unflappable flapper Lady Eileen Brent teams up with the dashing Jimmy Thesinger to solve the dastardly deeds. Their sleuthing leads them into a world of espionage and international intrigue as they discover a secret society known as "The Seven Dials" and the attempted theft of top-secret government documents.