Knights in white satin

The story:

When I first heard this song as a kid, I thought it was a tale of
courtly love along the lines of King Arthur and the Knights of
the Round Table. By convention the narrator couldn't directly
tell his beloved that she was his beloved, so he had to do it
in an indirect fashion, such as singing about it. Years later, I
bought a Moody Blues CD and saw that this track was
spelled without the K. I had gotten right the part about the
narrator not being able to tell her directly that he loved her,
but pretty much everything else was wrong.

I know I'm not the only person to have made this blunder,
because it appears in the Carl Hiaasen novel "Double
Whammy". There is a scene in which one character is
humming this song while tying up another character with
bedsheets, and the latter (if not Hiaasen himself) thinks the
song is "Knights in White Satin".