I quote from Ch 5,
He already knew all about Lizaveta and she knew him a little too. She was a single woman of about thirty-five, tall, clumsy, timid, submissive and almost idiotic. She was a complete slave and went in fear and trembling of her sister, who made her work day and night, and even beat her.
I adored 'Brothers Karamazov' and 'The idiot' is as good, better than 'Crime and Punishment'!