HERS WAS THE FACE THAT LAUNCHED A DREAM OF LOVE ... She was Treneau Cosmetics' goddess of beauty, Diana Nolan, the company's newest rising young executive, suddenly plucked from behind the camera to star in front of its relentless eye. But the sharpest eye of all belonged to Paul Treneau, the dynamic young cosmetics czar who spirited her away to his Hawaiian paradise, "on location" for love. He said it was business. Yet the woman who had inspired a multimillion dollar ad campaign had ignited in him a spark of desire fated to blaze out of control.