Can a man who loves order embrace chaos? Forty-one-year-old geneticist Don Tillman is living in New York City with his new wife Rosie. Sure, they're incompatible on paper – yet when did love ever follow the rules? And after ten months and ten days of marriage, Don has accepted a little chaos into his carefully ordered life. But when Rosie announces she's pregnant, Don panics. Suddenly, everything he loves most is in danger of being lost ...