a girl grows up in a school. Becomes a governess. Falls in love with the Master and the Master with her. He is already married though, to a mad woman. Jane leaves, finds her relatives and ends up with Mr Rochester when his wife commits suicide.
I can see why this is a classic. Simple but not shallow. This showed the struggle of someone who did what was right, not necessarily exactly what they wanted. And it turned out all ok in the end.