More importantly, her disclosures serve to reveal the squalid underbelly of drugs and sexual decadence that lurked below the surface of the Sixties' hippy movement.
Because in a chilling testimony, Miss Phillips claims her famous father also had designs on her - and within a year of that night, they would begin an incestuous relationship.
Mackenzie claims in a new book that her father and she started a drug-clouded sexual relationship in 1979.
One evening in January 1978, when Jerry was working in South America, Mick attended a party in the building thrown by one of his wealthy neighbours.