With rare access to family members, scholars and her personal archive, INSIDE THE MIND OF AGATHA CHRISTIE explores what made the world's most successful crime writer tick. Millions of readers worldwide know Agatha Christie's indelible characters and plot twists, but what do we know about the author herself? Dr. John Curran has spent years poring over her personal archive, a treasure trove containing letters, manuscripts and 73 meticulously kept notebooks in which she documented everything she saw and heard. He and others explain how the author used her experiences to weave together formidable plots and how, despite being known as the queen of "cozy" crime, Agatha's mind was, in the words of screenwriter Sarah Phelps, "incredibly dark."