
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.
Two women who lived in the same apartment complex were brutally murdered; the similarities of the crime scenes led police to believe they were dealing with a serial killer who hated women, and they had to find him before he struck again.
Investigators solve the 1988 murder of a drifter in Southern California by examining a species of fly found near the body.
A young girl beaten after watching her grandmother killed, identifies the wrong person; years later she tries to change her statement.
In 1971, John List disappears after murdering his mother, wife and three children; he eludes the law for years until an age-scaled sculpture of the suspect and a true-crime TV program helps lead to his arrest in 1989.