Rachel Blumenfield-Goldenfeinberger has never taken a risk in her life. A devoted student of statistics, she knows when the odds are stacked against her. But when her professor, tutee, classmate, and grandmother each challenge her to be open to life`s possibilities, she knows that something`s gotta give. "What do you want me to do?" she asks. "Go on a date?" Oy gevalt, but it`s a start. As Rachel discovers the unpredictability of the world, she approaches her obstacles in the only way she knows how: with rules, logic, and the laws of reason. Will her meticulous plan work? Maybe not. She might just realize there`s one pesky variable that has a way of skewing everything: chance.