In Montreal to testify as an expert witness in a murder trial, forensic anthropologist Dr. Temperance Brennan is called to the basement of a pizza parlor where three bodies have been found buried in shallow graves. Her examination reveals that the victims, young women, were recently killed, and she convinces police to investigate the deaths as murders. Puzzled when the bodies don't physically match any of the missing-person reports from past years, Temperance delves deeper and uncovers a horrifying secret. Meanwhile, boyfriend troubles and a friend's marital woes add to Temperance's problems.