Fortunato is a wine connoisseur who has wronged Montresor many times. Montresor wants revenge.
Fortunato insults Montresor. Montresor decides this is the last straw and he has crossed the line.
Montresor spots Fortunato dressed as a jester at a carnival, he appears intoxicated. When Montresor approaches Fortunato he invites him to his wine cellar to check out the new Amontillado he has received.
Montresor brings Fortunato into the catacombs. Fortunato is coughing and sounds sick, so Montresor offers him more to drink. Fortunato is now acting ridiculous due to the amount of alcohol he has consumed and he does not realize that he is being chained to a small area.
Fortunato falls silent after screaming for a while. Montresor throws his lit torch into the catacombs.
Fortunato dies in the catacombs and Montresor built a wall to cover his tracks so no one will find Fortunato.