Caroline Payne is surprised—and thrilled—when a handsome friend from college whom she hasn't seen in years shows up unexpectedly at her workplace. She is shocked—and dismayed—when she discovers why. Mat Hammond, an adjunct history professor who researches genealogical mysteries on the side, has honed in on Caroline's family. He's investigating Caroline's great-aunt, a British woman who he says ran off with a Nazi officer during the war, disgracing her family and betraying her country. A well-known magazine is already showing interest in what could be a shocking, sensational story. Caroline's convinced he has the wrong person. Her great-aunt, her namesake, died of polio as a child. When Mat shows her compelling proof, Caroline doesn't know what to think. If there's any truth to the matter, she knows such a public airing of dirty family laundry would finish off her already cancer-ridden father. She can't let that happen.