The Wrongs of Woman begins in medias res with the upper-class Maria's unjust imprisonment by her husband, George Venables. Not only has he condemned Maria to live in an insane asylum, but he has also taken their child away from her. She befriends one of her attendants in the asylum, an impoverished, lower-class woman named Jemima, who, after realizing that Maria is not mad, agrees to bring her a few books. Some of these have notes scribbled in them by Henry Darnford, another inmate, and Maria falls in love with him via his marginalia. The two begin to communicate and eventually meet. Darnford reveals that he has had a debauched life; waking up in the asylum after a night of heavy drinking, he has been unable to convince the doctors to release him.
Jemima tells her life story to Maria and Darnford, explaining that she was born a bastard. Jemima's mother died while she was still an infant, making her already precarious social position worse. She was therefore forced to become a servant in her father's house and later bound out as an apprentice to a master who beat her, starved her, and raped her. When the man's wife discovers that Jemima is pregnant with his child, she is thrown out of the house. Unable to support herself, she aborts her child and becomes a prostitute. She becomes the kept woman of a man of some wealth who seems obsessed with pleasure of every kind: food, love, etc. After the death of the gentleman keeping her, she becomes an attendant at the asylum where Maria is imprisoned.