Soon after her best friend Kitty mysteriously dies, orphaned seventeen-year-old Molly Green is sent away to live with her aunt. With no relations that she knows of, Molly assumes she has been sold as a maid for the price of an extra donation in the church orphanage's coffers. Such a thing is not unheard of. There are only so many options for an unmarried girl in 1850s Philadelphia. Only, when Molly arrives, she discovers her aunt is very much real, exceedingly wealthy, and with secrets of her own. Secrets and wealth she intends to share--for a price.

Molly's estranged aunt Ava, has built her empire by robbing graves and selling the corpses to medical students who need bodies to practice surgical procedures. And she wants Molly to help her procure the corpses. As Molly learns her aunt's trade in the dead of night and explores the mansion by day, she is both horrified and deeply intrigued by the anatomy lessons held at the old church on her aunt's property. Enigmatic Doctor LaValle's lessons are a heady mixture of knowledge and power and Molly has never wanted anything more than to join his male-only group of students. But the cost of inclusion is steep and with a murderer loose in the city, the pursuit of power and opportunity becomes a deadly dance.