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.
Crime/ Mystery Drama series After a series of disappearances of young women, newspaper reporter Lisa Wallace (26), sets out to find the man responsible who she believes is the same man who murdered her mother almost twenty years earlier.
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.
Eliza is hired by a Death Photographer who is receiving bizarre and threatening messages from beyond the grave, and later makes a surprising discovery about her late father.
Eliza pieces the puzzle together to find out what really happened to her father. Moses has lots of criminal connections, which make him a suspect during the investigation, but it could turn out to be someone who has been under Duke's nose.
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.
A famous mystery writer is at the centre of Eliza's investigation when a series of murders copy scenes in his books. Meanwhile, the Duke is also juggling problems at work with a new superintendent and a troubled young detective.
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. As Eliza and Moses work to solve the attempted murder, they realise Eliza was the target.
A famous magician does the ultimate disappearing act and vanishes into thin air. All of London is talking about the mystery and Eliza is hired by a newspaper to investigate, despite the fact that Duke is already on the case.
When reporter Lisa Wallace writes an article on her mother's murder, the killer resurfaces hinting at a kidnapping. Lisa and Detective David Burkely investigate, connecting the killer to the disappearance of a woman called Amy Reynolds.
Things are going well for Eliza until a familiar face shows up to question her role at Nash and Sons. Meanwhile, Duke receives an offer that brings their relationship to a crisis point.
Eliza and Nash are still struggling to work together when an explosive case takes them into a cutthroat industry where people will kill to keep their secrets.
