New York 40s. Lillian Penticost is the most famous private detective in town, but her health begins to fail her. After meeting Miss Parker, she decides to hire a girl as an assistant. After all, Willogen has a unique set of skills: masterfully throws knives, blindfolded opens any lock and easily puts men twice as much on her shoulder blades. An extraordinary couple soon has to investigate a mysterious murder. A famous fortune teller is invited to the Collins mansion for a Halloween party. After a Ouija session, Abigail, the landlady, is found dead. The office is locked from the inside, no visible evidence. And the only clue is a bloody crystal ball...