Alexander Herzog, a young writer, goes to Vienna to escape his debts and a failed love affair. There he is pursued by book-loving Ganna: giddy, girlish, clumsy, eccentric and wild. Dazzled and unnerved by her devotion to him, and attracted to the large dowry offered by her wealthy father, he thinks he can mould Ganna into what he wants. But no-one can control her troubling passions. As their marriage starts to self-destruct, Herzog will discover that Ganna has resources and determination of which he had no idea - and that he can never escape her.