 The plot of the story revolves around Brennan trying to decipher the clues left behind by the skeletons of three girls found in a pizza parlor basement in Montreal, Quebec, Canada, which has a colourful history.Brennan's forensic expertise tells her that the people were buried after 1955, but homicide detective Luc Claudel is convinced the bones are pre-1955, and dismisses the case.Brennan's frustration at Claudel for not investigating the case grows and she decides to take it on herself.