Fiery, clever, and daring, Mary Handley is a not your typical 19th-century lady. In this series debut, Mary steps forward at the murder scene of Charles Goodrich, the fiancé of her friend Kate and a former bookkeeper for Thomas Edison. After proving her acumen as a sleuth, Mary is hired by the Brooklyn police department—the city's first female policewoman—to solve the crime. In questioning the likes of Edison, J.P. Morgan, and Nikola Tesla, she realizes that this case goes well beyond finding a murderer; Mary will have to thwart the schemes of the city's most prominent and respected public figures—men who will go to great lengths to protect their secrets.