Heiress Aileen Lynch has just lost her mother to cancer, but her spendthrift stepfather insists she must cancel his gambling debts by marrying his disreputable associate. Fleeing Ireland with the help of her mother's lawyer, she lands in Boston to stay with friends and is attracted to one of their visitors. Doctor Samuel Walker is in town to attend a medical conference. When he meets the lovely young Irishwoman he is quite taken with her and, at his colleague's entreaty, marries her and takes her home to Texas with him to keep her safe. Sam rationalizes that he doesn't need a wife but he does need a mother for his son. While Aileen strives to earn Sam's affection, he vows never to risk Aileen's safety or his heart-he'll not father a child and watch Aileen die in childbirth as his first wife did. And falling in love is not in his plans.