verbal irony: -empathizes old man, while hatching plan to kill him -calls self calm and logical, but truly insane and agitated situational irony: -madmen are not ...
The irony in the Tell Tale Heart is that the narrator wants the reader to believe he is sane when clearly he is not because he is plotting the murder of the old man.
IRONY: THE UNEXPECTED. Irony is a contrast between expectation and reality. Much of the horror in “The Tell-Tale Heart” comes from Poe's use of irony.