From the back of the book "When Ryan Harris was approached with an unusual undercover assignment, the P.I. surprised himself by accepting. Posing as Kirsty O'Connell's new boyfriend was the only way he could protect the beautiful young heiress from the thread of kidnapping. Or maybe murder. But wining, dining and dancing, Kirsty around Sidney's top nightspots fanned the flames of the attraction crackling between them, and though it wasn't part of the plan, he bacame Kirsty's lover for real. Any closer and she'd discover the truth - that he was the ired help...and that there was a deadly stalker on her tail..."
"When Ryan Harris was approached w/ an unusual undercove assignment, the PI surpried himself by accepting. Posing as Kirty O'Connell's new boyfriend was the only way he could protect the beautiful young heiress from the threat of kidnapping. Or maybe murder."
Ryan Harris is working undercover to protect a young heiress from a kidnapping. He becomes her lover but she doesn't know that he is a hired help and that there is a stalker on her trail.
I have not read this book.