Raised in a devout Roman Catholic family in the Netherlands, Paul Glaser was shocked to learn as an adult of his father's Jewish heritage. Grappling with his newfound identity and stunned by his father’s secrecy, Paul set out to discover what happened to his family during World War II and what had caused the long-standing rift between his father and his estranged aunt, Rosie, who moved to Sweden after the war. After operating an illegal dance school in her parents’ attic, Rosie was betrayed by both her ex-husband and her lover, taken prisoner by the SS and sent to a series of concentration camps --- But her enemies were unable to destroy her.