The narrator receives a letter from his childhood friend. In the letter, his friend Roderick Usher, explains his problem.
As soon as the narrator arrived to the house, he felt a sense of terror and uneasiness. Once he entered the house, the feeling only grew worse. When he saw Usher, he was not surprised to see in such bad shape he was, but was rather expecting him as such.
As Roderick Usher and the narrator were talking, Lady Madeline passed by and looked ghost-like. She didn't even notice that there was someone there. Usher was very sad seeing his beloved twin sister in such bad conditions.