The body of a young woman is found in a ditch in the woods of the small California coastal town of San Benito. Cassie Mayweather, the seasoned homicide detective and tenacious crime scene specialist is assigned to the case with her new partner uncover. They discover a trail of shrewdly concealed evidence that links two brilliant young men to the murder. Through the investigation, the detective discovers dark secrets in the teenagers' past that explain how the two could be capable of such cold calculated crimes.