As London's only female detective, Eliza is struggling to get work. Desperate for money, she 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 pleaded guilty.

The Duke hires Eliza to spy on suffragettes. Going beyond her instructions, she gets involved in Britain’s biggest plot since Guy Fawkes.

A post-mortem portrait photographer gets messages from beyond the grave. Eliza’s investigation takes her into the spirit world.

Searching for the secret to her father’s fate, Eliza goes to an abandoned prison. Eliza and the Duke stumble on a criminal enterprise.

Eliza is forced into hiding when she is the prime suspect in a series of break-ins at city mortuaries. While Duke tries to find other suspects, Eliza turns to Moses for help.

Eliza is hired to solve a case of blackmail in the shady world of Victorian medicine, and finds herself with a new rival-Patrick Nash, the owner of a large private detective agency who wants to hire her or crush her agency.

While Eliza and the Duke struggle around the edges of their relationship, private investigator Nash is shot just as Eliza agrees to work with him.

When a magician vanishes into thin air, Eliza is hired to investigate, despite the fact that Duke is already on the case.

Detective Fitzroy sees one of his colleague's plant evidence on a suspect. With Duke away, Fitzroy turns to Eliza for help.

Eliza teams up with Duke to investigate a burglary in a high-end brothel whose clients include important members of the British government.

When a close friend of Mr. Potts is murdered, Eliza finds herself investigating the dark and macabre world of Victorian undertakers.

Eliza is on the trail of a fugitive who is charged with murder. She must find him before the police do or risk losing everything.

Eliza is hired by Scotland Yard to find a missing Lord accused of murdering his maid, but when the new Detective Inspector arrives, he removes Eliza from the case. DI Blake has his own rule about not using private detectives and Eliza now has a fight on her hands to convince the new boss that she is an invaluable resource.