A Perfect Match

After twenty-six years of marriage, Donald and Helen make no pretense of being passionately in love.
Happily independent of each other, they get their pleasures elsewhere.
But things get a bit too cozy when Donald's mistress, a rich widow, turns up murdered in a boating park, and the person known to have driven her there is Helen's young lover-who has since vanished. The connection is especially puzzling since, until the night of the murder, the two had never met.
-This brilliantly intricate case presents a challenge that Detective Inspector Lloyd and his charming young detective sergeant Judy Hill meet head on. It's the perfect crime... except for one very small detail....