Edinburgh, 1847. Will Raven is a medical student, apprenticing for the
brilliant and renowned Dr Simpson. Sarah Fisher is Simpson's housemaid,
and has all of Raven's intelligence but none of his privileges.
As bodies begin to appear across the Old Town, Raven and Sarah find
themselves propelled headlong into the darkest shadows of Edinburgh's
underworld. And if either of them are to make it out alive, they will
have to work together to find out who's responsible for the gruesome
deaths.