Synopsis
As the play opens, Countess Isabella is at her house in Venice, where she observes the customary period of mourning for her recently-deceased husband Viscount Hermus. Her state of mind is far removed from what society expects: instead of grieving over her husband's death, she wishes he had died much sooner. She quickly strikes up a new romance with Roberto, the Count of Cyprus; they violate mourning with a sudden marriage.
A masque is staged at their wedding feast — and the wanton Countess is attracted to one of the dancers in the masque, Count Massino. She writes him a love letter; they meet and quickly flee together to Pavia. There, Isabella meets Massino's friend Gnaica, the Count of Gazia, and just as precipitously she conceives a passion for him. Gnaica resists her advances at first, unwilling to betray his friend; but the Countess's appeal soon overwhelms his scruples. Massino returns from hunting, only to be denied admission to Isabella's presence. He denounces her uncontrolled lust in satiric verses; she, outraged, solicits Gnaica to kill Massino. The two meet and duel — but soon find that their hearts aren't in the matter. They talk over the situation, and part amicably.
Isabella is even more outraged by this, and determines to work the deaths of both men. A Spanish colonel named Don Sago falls in love with her on first sight; she uses him to kill Count Massino. Sago is captured and brought before the Duke of Medina; he confesses fully. As a result, Isabella is condemned to death. Her husband Count Roberto, disguised as a friar, visits her on the scaffold, to offer her his forgiveness and bid her a final farewell.
Isabella's lustful career is contrasted with the three virtuous women of the play's subplot. Two foolish citizens, Mizaldus and Clardiana, are determined to continue a family feud begun by their grandfathers; even on their mutual wedding day, the two quarrel in the street. Their new brides, Thais and Abigail, are old friends, and decide to teach their silly husbands a lesson. The two men are not brave enough to fight an actual duel; each tries to gain advantage on his rival by seducing the rival's wife. Thais and Abigail use this circumstance to stage a doubled version of the bed trick that is so common in English Renaissance drama. Both Rogero and Clardiana have sex with their own wives, each mistakenly thinking that he is a successful seducer.
Meanwhile, the virtuous widow Lady Lentulus is being pursued by her own would-be seducer, Mendoza Foscari, nephew of Duke Amago of Venice. When Mendoza tries to climb to the widow's balcony, his rope ladder breaks under him. Mendoz is injured in the fall; he crawls away from the Lady's house, and is apprehended by the night watch. The watch assume that the Duke's nephew has been assaulted, and scour the city for suspects; they find Clardiana and Rogero in each other's houses, and arrest them both. The two silly men are ready to be wrongfully condemned, rather than admit publicly that they've been cuckolded (as they now believe); Mendoza, wanting to spare Lady Lentulus dishonor, claims that he was climbing to her apartment to steal her jewels.
The exasperated Duke sentences all three men to death, hoping that the move will shock someone into telling the truth. On the day appointed for the executions, Abigail and Thais come forward to explain the double bed trick; their husbands, now realizing that they are not cuckolds, retract their confessions and are released. (Mendoza's part of the story is never resolved.)
Read more about this topic: The Insatiate Countess