Beatrice Steele lives a perfectly agreeable life with her mother, father, and two younger sisters - Louisa and Mary. But she is obsessed with the true crime cases she reads about. If anyone found out, she would be deemed a morbid creep and banished from respectable society forever. Eligible bachelor Edmund Croaksworth is set to attend the approaching ball, and the Steele family hopes Louisa will steal his heart. When Croaksworth drops dead in the middle of a minuet, the evening descends into a frenzy of panic as it becomes clear they are trapped with a killer. Beatrice must rise above decorum and decency to pursue justice - before anyone else is murdered.