Justine Laraby and Kemina Lopez are intimate acquaintances yet they have never exchanged so much as a single word. For months, high school senior Justine, and famed model, "Kemina, the Baby Vixen" of Nightingale Lingerie, have been peering at each other across a narrow alley between brownstones in the Upper West Side of Manhattan. This mutual observation soon turns into the exchange of handwritten messages on signs they hold up whenever they come to their bedroom windows. Via this "sign language," a friendship grows, and Justine learns that Kemina is, like her, a high school senior, but with...