Set in 1963, in the swirl of glamour and intrigue that turned President of the United States John F. Kennedy's Washington, D.C. into Camelot, a young teenager, Adam Stafford (Cameron Bright) has an inside view of JFK’s torrid affair with his neighbor Catherine (Gretchen Mol) and secret Central Intelligence Agency assassination plans. The assassination plan was influenced by a Cuban national in which America was having a revolutionary threat from Fidel Castro. Catherine kept a diary which entries were about the secrets of the President. This diary was secretly stolen from Catherine by Adam Stafford when she fell asleep. The contents of this diary were the cause of her murder by the CIA, presumably.