She was a longtime lover of JFK. She was the ex-wife of a CIA chief. She was the sister-in-law of the Washington Post’s Ben Bradlee. She believed in mind expansion and took LSD with Timothy Leary. She was a painter, a socialite and a Bohemian in Georgetown during the Cold War. And she ended up dead in an unsolved murder a year after JFK’s assassination. The diary she kept was never found. Until now. THE LOST DIARY OF M reimagines the extraordinary life and mysterious death of Mary Pinchot Meyer.