A charming doctor from Washington, D.C., and a young woman from New York find themselves falling in love under unexpected circumstances—after they have already tied the knot. Leah Lever is wed to Benjamin Lever, an Orthodox rabbi, whose brother Jake is a thriving cardiologist and does not actively practice Judaism. Jake is shocked by Benjamin’s sudden passing, but even more so when he learns that, according to an old Jewish tradition, he is obliged to marry Leah, who has no children, to preserve Benjamin’s lineage.