Josephine Montfort is from one of New York's oldest, most respected, and wealthiest families. Like most well-off girls of the era her future looks set-after a finishing school education, she will be favourably married off to a handsome wealthy gentleman. But Jo wants a more meaningful and exciting life: she wants to be an investigative journalist like her heroine Nellie Bly. But when Jo's father dies after an alleged accident, she begins to investigate his death with the help of a young reporter, Eddie Gallagher. It quickly becomes clear he was murdered, and in their race against time to discover the culprit and his motive, Jo and Eddie find themselves not only battling dark characters of the violent and gritty streets of New York, but also their growing feelings for each other.