As Tofano marries Monna Ghita, he bears an unexplainable envy for her. Despite her beauty, Tofano can't help but be reluctant as they wed. Monna Ghita becomes concerned with his jealousy, causing an immediate rift in their new relationship. This toxicity does not bode well for the future of their relationship.
Monna Ghita meets a young man that she makes her acquaintance, and soon they begun an affair. She observes her husband is a heavy drinker, and uses that to her advantage; she persuades him into drinking till he is blindly drunk, and during his drunken stupor in the night, she leaves to fraternize with her lover.
Tofano notices his wife's eagerness to get him overly drunk and her absence of drinking at all, so he assumes Monna Ghita is tricking him into drinking so she can please herself in the night. Tofano pretends to get drunk one night so he can see Monna Ghita leave. As she leaves, he locks her out of the house and stays until she comes back so he can accuse her.
Monna Ghita tricks Tofano into thinking she committed suicide by tossing a nearby rock into a well. While Tofano is distracted by this predicament, she slips past him into the open door of the house. Monna Ghita then proceeds to lock Tofano out of the house.
Tofano orders Monna Ghita to let him in, and they engage in a screaming argument. The neighbours begin questioning the events, and Monna Ghita lies to them and says her husband is an awful drunk coming home late at night, and Tofano defends himself by exposing his wife. The neighbours only believe Monna Ghita and scold Tofano for abusing his wife. The woman's kinsfolk get drawn, beat up Tofano, and take Monna Ghita's belongings back with them.
Since Tofano was fond of his wife, he asked friends of his to make an arrangement with her kinsfolk to get her back to him. He promised her he would never be jealous again, and also gave her permission for her promiscuity, so long as he never found out.