Miss Scarlet (Seasons 1–7)

When Eliza Scarlet's father dies, he leaves her penniless, but she resolves to continue his detective agency. To operate in a male-dominated world, though, she needs a partner... step forward a detective known as the Duke. Eliza and The Duke strike up a mismatched, fiery relationship as they team up to solve crime in the murkiest depths of 1880’s London.