The House of Mirth by Edith Wharton
On my way to read ALL the classics - this one sounds pretty good. Edith Wharton based the majority of her books on the fashionable New York society she was raised in (sounds good to me). The House of Mirth is about a wealthy woman who is addicted to the pleasures of the moneyed world but she soon figures out that she is completely out of her element and "unfit for survival." Sounds sexy!