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?
Going against the wishes of everyone around her, including family friend Inspector Wellington, aka "the Duke", she opts for the latter and, along the way, enlists the skills of Moses an infamous Jamaican crook.
In her first ever assignment, Eliza is hired by a male client trying to find his "long lost niece".
Something about this missing person doesn't quite add up but, with so much to prove, can Eliza crack the case and prove her doubters wrong?