On a cold day, in his junior year at Harvard, Sam Masur exits a subway car and sees, amid the hordes of people waiting on the platform, Sadie Green. He calls her name. For a moment, she pretends she hasn't heard him, but then, she turns, and a game begins: a legendary collaboration that will launch them to stardom.
These friends, intimates since childhood, borrow money, beg favors, and, before graduating, they create their blockbuster game Ichigo. Overnight, the world is theirs. Sam and Sadie are brilliant, successful, and rich, but these qualities won't protect them from their own creative ambitions or the betrayals of their hearts.