After being arrested and charged with "foul atheism" and fornication, Casanova is sentenced to five years imprisonment at "The Leads": the most notorious of Venetian gaols. Brutalised by Lorenzo the gaoler and devoid of hope under the harsh prison regime, Casanova's mind wanders back to his past loves and adventures. He finds himself haunted by the memory of Christina, a simple country girl he gave to another rather than marry her himself.