The Bell Jar is the story of Esther's descent into mental illness, her treatment, and her theoretical recovery.
I found the narrative to be detached, and perhaps that was deliberate. The narrator was looking back at the experience and trying to relate it without sliding back and feeling those feelings again. Even so, ofen throughout the book I found myself wondering "why are you telling me this?" It was like meeting a stranger on a bus and having them tell you their life story.