Venice, 1755. Casanova has been thrown into jail on charges of impiousness, forgery and fornication. He thinks back on his pursuit of Cristina, a simple girl willingly seduced.

Casanova's eye is set on the three daughters of his landlord. A friend advises that he won't get anywhere if he tries to take all three at once.

In Mantua, Casanova goes to great lengths to seduce the lovely daughter of an old man, taking on the role of a magician to dupe her father.