In the glamorous and cutthroat world of high fashion, Andrea Sachs secures the job 'a million girls would die for,' working as the assistant to the notorious Miranda Priestly at Runway magazine. Thrown into a world where luxury and style reign, Andrea struggles to meet the impossible demands of her boss, learning that the world of haute couture demands sacrifices beyond her wildest dreams. As the veneer of glamour fades, she is forced to contemplate the true cost of her ambition and what she is willing to endure for success.