Music scholar Frederica Bannister is thrilled when she beats her bitter rival, Kristian North, for the chance to be transferred back to 1861 Tuscany to observe firsthand the brilliant Johannes Brahms. Frederica will not only get to see Brahms in his prime; she'll also try to solve a mystery that has baffled music experts for years.

But once in Tuscany, Frederica's grip on reality quickly unravels. She instantly falls under Brahms' spell-and finds herself envious of his secret paramour, the beautiful, celebrated concert pianist Clara Schumann. In a single move, Frederica makes a bold and shocking decision that changes everything…

When Frederica fails to return home, it is Kristian North who is sent back in time to Tuscany to find her. There, Kristian discovers that Frederica indeed holds the key to unraveling Brahms' greatest secret. But now, Frederica has a dark secret of her own-one that puts everyone around her in devastating peril...