The Polka Dot File on the Robert F. Kennedy Killing describes the day-to-day chase for the mystery woman in the polka-dot dress. The book comments on but does not dwell on the police investigation, and reads like a detective thriller instead of an academic analysis of the investigation. The Polka Dot File incorporates actual tapes made by an important witness, and introduces the testimony of witnesses not covered in other books. The Polka Dot File is a new take on the assassination and the motives for it. It introduces a new theory for the reasons behind the assassination, and is original and highly personal, reaching a startling and different conclusion not exposed by other books.