Roxy Callahan, the sole heiress of Detroit's Callahan Motors, flees an arranged marriage with Wall Street's Murdoch family and hides in Queens as a grease-stained mechanic. On a stormy night, she rescues Viktor Murdoch—the ruthless billionaire tycoon and her intended fiancé—after a car crash, leading to a passionate one-night stand. She flees at dawn with his custom cufflink, only to discover she is pregnant.