High Tide by Jude Deveraux

Fiona is the creator of fashion doll sensation Kimberley, and is quite satisfied with her career-focused life. Yet when her boss informs her that she must win over a new account by going camping with the creator of a hit children's TV show, she is extremely reluctant. Nevertheless, she goes to Florida to meet Roy and his Guide Ace Montgomery. When Roy is found dead with Fiona holding the bloody knife, she becomes the prime suspect - though she has no recollection of what happened. Things get worse when she learns that Roy, until now a stranger to her, left her all the proceeds from his new TV show, giving her a strong motive for murder.

Suddenly, she and Ace find themselves on the run, and being condemned by the press for murder. They must prove their innocence by discovering the true motive and murderer of Roy. Fiona and Ace figure out they are linked through her father, and it is then that Fiona learns the secrets of her family's past, turning her world upside down.