McNally's Secret by Lawrence Sanders

Much lighter than Sander's series about NY cops, but with charm and fun. I'd read the next in the series. PW: Archy McNally, a freewheeling playboy who specializes is "discreet inquires" for the rich and not-so-discreet. Beneath the glaring sun of Palm Beach - and behind the lowest crimes of high society - McNally is paid to keep family skeletons in the closet. But when it comes to sex and scandal, McNally has a few secrets of his own....