«Gentleman Jack» is based on the real character Anne Lister. In 1832 in Halifax, Anne Lister (Suranne Jones), known locally as Jack Gentleman / Gentleman Jack, is a wealthy landlord. She is also a diary and travel writer. They know at home and openly live as a lesbian, calling themselves «The First Modern Lesbian». The relationship between her and her family, servants, tenants, business competitors, and Ann Walker will be described.