Sixteen-year-old Ezra McAdam has much to be thankful for: trained up as an apprentice by a well-regarded London surgeon, Ezra's knowledge of human anatomy and skill at the dissection table will secure him a trade for life. However, his world is turned on its head when a failed break-in at his master's house sets off a strange and disturbing series of events that involves grave robbing, body switching ... and murder.