Los Angeles, 1920s: Socialite Mirielle West's days are crowded with shopping, luncheons, and prepping for the myriad glittering parties she attends with her actor husband, Charlie. She's been too busy to even notice the small patch of pale skin on the back of her hand. Other than an occasional overindulgence in gin and champagne, which helps to numb the pain of recent tragedy, Mirielle is the picture of health. But her doctor insists on more tests, and Mirielle reluctantly agrees.