In the compelling story of The Devil Wears Prada, we follow our hero, Andy Sachs, on her journey as she begins a new life in New York with ambitions of becoming a journalist. The first job she must take with a fashion magazine seems counterproductive to her goals, but if she succeeds at the job "a million girls would kill for" as one of fashion editor Miranda Priestly's assistants for a year, her future road to success will be paved for any job she desires.
Andy's life soon becomes overwhelmed by her demanding new position at Runway as she struggles to fit into very unfamiliar territory. She is pushed to the brink of doubt, at which time she receives much-needed help from a new found friend, Nigel, the magazine's art director. With a positive new outlook - along with a growing wardrobe of fancy designer clothes - Andy is able to embrace her situation, and her professional life, while still strenuous, begins to blossom.
She is faced with many personal challenges as she is discovering herself in the new world she now lives in, such as having to choose her job and boss over her friends or resisting the allure of a new romantic interest over her boyfriend. We watch her old life unravel behind her as she progresses through new experiences and is tested. There is much change in Andy's personality from who she was at the start of the story, and her friendships and romantic relationship suffer, falling into turmoil.
Andy's co-assistant, Emily, is expected to go to a big Paris event, but Miranda, feeling Andy is now the better assistant, requests her presence instead. While Miranda basically forces her hand in the decision, she still ultimately chooses...