The premise of the novel is drawn from Gissing's own early life — an intellectually superior man born into a socially inferior milieu, though the story arc diverges significantly from the actuality.
He moves to London where he abhors the social mores of the lower orders and pines to be accepted into high society where he believes his intellect should place him.
These include Christian Moxey, who has an idealised romantic fixation on a married woman (ultimately found to be unrequited), Moxey's sister Marcella has a likewise unrequited crush on Godwin Peak, and Malkin-a flighty Bohemian who has an idea of training an adolescent girl to be a wife worthy of his radical views, and who has formed a relationship with Mrs. Jacox and her daughters to further this plan (ultimately successful).
He meets Sidwell, now a beautiful and devoutly religious woman, and in a hypocritical volte face Peak declares himself a Christian and whats more his intent to take Holy Orders.
He reluctantly accepts it (she had previously offered him money but he refused it) and now an independent man of means he proposes marriage to Sidwell.