Casanova, the world famous lover, languishes in prison. From the window of his cell, he watches a couple make love in the park. The desire for freedom becomes almost unbearable. A cunning young lady seduces the warden and steals the prison keys, giving them to Casanova after a red hot love-making session. Picturesque Venice forms the impressive backdrop for a series of thrilling situations, all of which amply illustrate why Casanova's sexual prowess has become such a legend…