"Lucy Houston and Mickey Chandler probably shouldn't have fallen in love, let alone gotten married. They're both plagued with faulty genes--he has bipolar disorder; she, a ravaging family history of breast cancer. But when their paths cross on the night of Lucy's twenty-first birthday, sparks fly, and there's no denying their chemistry. Cautious every step of the way, they are determined to make their relationship work--and they put their commitment...