Halloween in a small town is cancelled indefinitely when a young girl is kidnapped and killed on her way home from a costume party.

A family torn apart by their grandparents' murders. Two decades later, a cold case detective takes on the case that has haunted him since he was a child--racing to solve it before the family take matters into their own hands.

The case of a gruesome stabbing death of a bullied teenager remains unsolved for 27 years.

A killer authors a book about his con-man past that becomes the key to solving a 29-year-old cold case of two high school sweethearts--and three other cold case murders--leading police to believe he could be the Zodiac Killer.

College student Brad Perry shows up to work his graveyard shift at the gas station and is never seen alive again.

The longest running cold case of a law enforcement officer in the United States was the murder of Sheriff's Lt. Joe Clark.