Nick Marshall, a Chicago advertising executive, expects to get a promotion at the advertising firm Sloane Curtis, but his manager Dan instead announces that he is hiring Darcy McGuire to improve the firm's appeal to women. Darcy gives the staff a task to develop advertising ideas for some products for women. While testing a few items at home, Nick falls into his bathtub while holding an electric hairdryer, shocking himself. The next morning Nick awakens to discover he has a new gift: he can hear women's thoughts. He decides to use it to his advantage.