The Gemstone File proposes that Aristotle Onassis, Joseph P. Kennedy, and other prominent figures were involved in various schemes to forward a vast global conspiracy, involving the Mafia and corrupt politicians, brutal oil and drug cartels, rogue military operations, and more.
The Gemstone File portrays Onassis as the main force behind the election of John F. Kennedy as President, and subsequently, Kennedy's assassination in 1963.