The investigation of the disappearance of a young woman leads police to a suspect who has a history of sexual assault, rape, and kidnapping. But police could not find the victim's body, making it more difficult to connect their suspect to the crime. Finally, police discover the remains of a charred tooth. Superimposed images and an analysis of the elements of a dental filling give investigators the proof they need to bring the perpetrator to justice. (thetvdb.com)