Montresor meets a highly intoxicated Fortunato at Carnival and tells him that he has bought a pipe of Amontillado needs Fortunato to put his connoisseurship in wines to good use and come to his family's mansion to make sure that it is legitimate.
Montresor and Fortunato enter the mansion and head down to the catacombs where Montresor claims to be keeping his Amontillado. Montresor had given explicit instructions to his family that they do not return to the mansion until morning. This is part of his complex plan for Fortunato's immolation without retribution.
As Montresor and Fortunato walk through the catacombs, Montresor notices that Fortunato has a cough and suggests that they leave the damp, mold-filled catacombs. When Fortunato insists on continuing on, he says that he will not die of a cold. Montresor ironically agrees with a leer that Fortunato will not die of a cold.
Fortunato learns that Montresor is a bricklayer and one of the masons.Fortunato makes odd gesticulations after Montresor offers him even more wine to make him more drunk so that he is less aware.
The two men reach a recess in one of the walls of the catacomb. There are chains in the back of the recess and being as drunk as he is, Fortunato willingly gets inside and Montresor chains hm up.
Montresor begins to cover the recess with a layer of bricks. He stops his work to take satisfaction in Fortunato's cries and banging against the chains. Fortunato then thinks it is a joke and starts to laugh but falls silent when he comes to terms with the truth.