In 1910 Toronto, while other bachelor girls perfect their domestic skills and find husbands, two friends perfect their sleuthing skills and find a murderer.Inspired by their fascination with all things Sherlock Holmes, best friends and flatmates Merinda and Jem launch a consulting detective business. The deaths of young Irish women lead Merinda and Jem deeper into the mire of the city's underbelly, where the high hopes of those dreaming to make a new life in Canada are met with prejudice and squalor.While searching for answers, donning disguises, and sneaking around where no proper ladies would ever go, they pair with Jasper Forth, a police constable, and Ray DeLuca, a reporter in whom Jem takes a more than professional interest. Merinda could well be Toronto's premiere consulting detective, and Jem may just find a way to put her bachelor girlhood behind her forever—if they can stay alive long enough to do so.