
Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.
A seemingly model citizen turns out to be a serial killer.
Police find fragments of deleted computer files leading them to suspect a woman's suicide is really murder.
A suspicious neighbor gives police a break in a cold case.
A family suspects their teenage daughter's new friends were involved in her disappearance.