The headless man.

No, not a ghost story - this is another for us oldies who remember 1963.  The Great Train Robbery, the assassination of JFK and... the divorce case between the Duke and Duchess of Argyll.  In support of his case, the Duke produced several Polaroid photographs of the Duchess in various compromising situations, including a famous one of her performing what was delicately referred to as "a sex act" with a man whose head was not shown.  Much speculation then and since as to who it was - Duncan Sands, then Defence Minister, and Douglas Fairbanks Jr. were favourites, but now her daughter-in-law has come out to say that it was in fact her then current lover, Bill Lyons, sales director of Pan Am.  Bit of a let-down, if true.