What is the conflict in the "Tell Tale Heart " ?

There are two conflicts within "The Tell-Tale Heart," one being the narrator's preoccupation with the Old Man's eye and the other being the narrator trying to convince the reader of his sanity. 

Firstly, the narrator is preoccupied with the man's eye, claiming that "[o]ne of his eyes resembled that of a vulture--a pale blue eye, with a film over it. Whenever it fell upon me, my blood ran cold..." (Poe 836). Prior to, the...

There are two conflicts within "The Tell-Tale Heart," one being the narrator's preoccupation with the Old Man's eye and the other being the narrator trying to convince the reader of his sanity. 

Firstly, the narrator is preoccupied with the man's eye, claiming that "[o]ne of his eyes resembled that of a vulture--a pale blue eye, with a film over it. Whenever it fell upon me, my blood ran cold..." (Poe 836). Prior to, the narrator states that there was no passion in his plot to rid himself of the old man's eye nor did he want any of the old man's money; in addition, the old man had "never wronged [him]" (Poe 836). This conflict is simply created  due to the old man's eye that distressed the narrator and made him feel uneasy, so he had to be rid of it. The reason it is a main conflict is due to the fact that the conflict is resolved by the end of the story.

The second conflict--and less obvious--is the fact that the narrator is trying to convince the reader of his sanity: "...but why will you say that I am mad? (...) Hearken! and observe how healthily--how calmly I can tell you the story" (Poe 835). The narrator continues throughout the story bragging about his well-thought-out plan and his "sagacity" in carrying out the murder (Poe 836). Most notably, he states, "[i]f you still think me mad, you will think so no longer when I describe the wise precautions I took for the concealment of the body" (Poe 839). Again, the narrator tries to convince the reader of his sanity--as he has done throughout the entirety of the short story--while his actions are vile and unspeakable, but the conflict remains unresolved at the very end whether or not the narrator has convinced the reader of his sanity.