Are the disappearance of a private eye in 1963 and the Kennedy assassination of the same year connected?

A mobster is upset when he learns that a petty thief has found an unexpected $900,000.

Private investigator Charlie Garrett is in luck when Jessica is in Martinique vacationing at the same time he is accused of murdering the woman he's been trying to locate for a client.

In Aspen, Colo, Jessica's friend, Laney, seems to be the best suspect in the murder of her husband, Grant Boswell.

Jessica agrees to go to New York to bid on a manuscript purportedly by Sir Arthur Conan Doyle, and while there, she gets mixed up in the murder of a local forger who had been involved in the theft of a priceless Degas painting two years earlier when she tries to help Charlie Garrett out of a jam.