ER physician Elizabeth Hillman has been hurt by the men in her life far too often—which is why she spends her free time safely alone, reading the memoir of Giacomo Casanova, history's most famous libertine. But when a child in Lizzy's care dies, she flees to Venice, Italy for a much-needed break—and there, on a lovely rooftop, Casanova appears beside her. In 2016, Casanova is still Casanova. He seduces her friends, is arrested for child endangerment, and even boffs the cleaning lady. Although his antics upset Lizzy, she's determined to enjoy his conversation and not fall victim to its legendary charm. But when she and Casanova travel to Paris seeking an answer to a question of love that would have changed his life, an incendiary love affair begins to unfold. Who better to teach modern guarded Lizzy about love and life than an eighteenth-century libertine?