All over Hollywood, men are dialing O--for orgasms. Her steamy naughty talk fills them with lust and longing, and helps them perform like the studs they claim to be. In truth, the industry's favorite "erotic phone operatrix" is Nina Harte, a struggling actress who has put her career on hold so that her husband, Nathan, can pursue his own dreams of stardom. When Nathan's career takes off, so does he, leaving Nina and their four-year-old son,...