A look into the private realm of one the world's most iconic and inescapably public women in the last two years of her meteoric life, and explores the Princess of Wales' final rite of passage: a secret love affair with Pakistani heart surgeon Hasnat Khan.

Present day Scotland. A tale is told to a couple of American tourists by a kindly gentleman in a pub. Angus is a lonely boy who pines for his father, who is serving in the Royal Navy during World War II. Angus, along with his sister and mother, live on an estate that has been billeted by soldiers in the Scottish Highlands, near Loch Ness. The troop's commander has an eye for mom, is suspicious about a mysterious handyman, Lewis, who is also a war...