Two men named Montressor and Fortunado see each other during carnival season. They are both dressed for carnival season and Fortunado had already began celebrating with a drink.
These two men have known each other for a long time and dislike each other but pretend they are good friends. Fortunado takes thing too far and crosses the line with Montressor. Montressor now vows revenge against Fortunado using his weakness, wine.
In order to get revenge on Fortunado, Montressor plans to lure him through the catacombs and tell him he has some Amontillado for him to check. He takes him to the catacombs and they make their way to the end. Montressor gives Fortunado many chances to go back so that he doesn't seem guilty or feel guilty about what he has planned.
They reach the end of the catacombs and before they get there, Montressor gives Fortunado one last chance to go back. He choices to stay and as soon as he declines going back, Montressor chains him to the wall at the end of the catacombs.
Montressor begins mentally torturing Forunado while he has him chained and begins covering the small space at the end of the catacombs with Forunado behind it. Montressor enjoys torturing Montressor and laughs and mocks Forunado as he cries for help.
Montressor holds back on completely covering the wall because he enjoys it and wants to see if he is still alive. After finishing the wall he leaves with satisfaction and contempt. He describes to the reader how he has never been caught and no one has found Forunado or suspected anything.