The exposition of this story is Fortunato was looking for someone because he wanted to get revenge upon them for what they did.
Falling Action
The rising action was when is when Montresor brings fortunate to his catacombs to taste his Amontillado, (an expensive type of wine), but instead Fortunato get intoxicated and chained in the catacombs.
It was Resolved By
The climax of this story was when Montresor chains Fortunato to the wall of the catacombs, and Montresor then ignores the screams of Fortunato for mercy.
The Theme Is
The falling action was when Fortunato stops screaming while chained, and Montresor only hears the jingling of the bells on his costume when he throws his torch into the catacombs.
When Montresor completes his job to get revenge and avenge the someone to something he was so daring to do.
The theme of "Cask Of Amontillado" is about Montresor trying to get revenge on his friend by killing them most likely to avenge someone or something.