The body of a woman, clad in nothing but a fur coat and jewelry, is found floating in the Arno at dawn. Marshal Guarnaccia of the Florentine carabinieri identifies her as a foreigner who lived for years as a recluse in one of Florence’s most respectable hotels. But how and why did she die? Following a complex trail of blackmail, jewel theft, and drug-dealing, Marshal Guarnaccia finally tracks down the shocking truths about a cold-blooded murderer and his all-too-trusting victim.