Miss Scarlet & the Duke - Season 1 (2020)

When Eliza Scarlett's father dies suddenly, she's faced with a stark choice. Accept the fact she is now penniless or take on and run her dad's detective business, but can she succeed against all the odds in this male-dominated world?

Eliza takes a seemingly impossible case: proving the innocence of a man found at a murder scene with a bloodied knife in his hand, who has already pleaded guilty.

Scotland Yard has its eye on potentially disruptive gangs and political groups. Eliza is hired by The Duke to go undercover and infiltrate one such group.