Compeyson had a good education when he was a child. He eventually started his own business of forgery with a man called Arthur, Miss Havisham's half brother. They conspired against her. Compeyson fooled Miss Havisham into being deeply in love with him and as a result of this, he managed to get a lot of her money. He eventually got her to agree to buy the brewery Arthur inherited from his father. When the day of the marriage came, Compeyson left her a letter saying that he had abandoned her. This mentally scarred Miss Havisham, and resulted in her laying waste of her house, Satis House.
Abel Magwitch was a convict who worked under Compeyson. They were one day accused of felony which resulted in their arrest. Magwitch got fourteen years, whilst Compeyson received a sentence of seven years in jail.