[2][3] Mary Cimino, a waitress from New York, receives a call from her Italian husband Giulio, who tells her that he has acquired unexpected wealth and requests her immediate presence in Florence, Italy.

With much persuasion, she manages to coax him into granting her the empty seat, and during her journey she becomes both attracted to his ruggedly handsome looks and angered by his surly personality.

Desperate to find Giulio, but unable to stay in her hotel any longer because it was rented for only a limited period by her husband, Mary turns to Tito for help.

Since she has left the address of his office at the hotel, Tito is informed about Giulio's demise, and after taking Mary to the coroner to identify the body, he gives her a return ticket to New York.

Intrigued by the case, Tito accompanies Mary on her search for it, and they follow the clues on the map to Siena, under constant pursuit by the three men.