In 1978, a shocking murder in broad daylight terrifies a small Illinois town; it goes unsolved for years, until an elite team of investigators uses cutting-edge technology to dig up new clues and lay a cunning trap to catch a killer.

In Youngstown, Ohio, in 2017, an unsuspecting married couple discover body parts in a mysterious, locked freezer that someone put in their basement, unlocking a harrowing mystery surrounding a missing woman and a tragic love triangle.

In June 2001, just outside Rockford, Ill., a welfare check leads police to a woman brutally murdered in the basement of her once quiet suburban home; the hunt for her killer will lead detectives to a mystery that has been buried for over 14 years.

When 32-year-old Adam Chase goes missing, police comb the woods and fields of Ontario County, New York, but come up with nothing; it takes a months-long efforts of a private investigator to at last reveal the truth and Adam's terrifying fate.

A man vanishes from a small town, leaving behind a trail of strange clues that stumps detectives and leads his neighbors to believe that a deadly imposter is living among them; when his body is found, the truth is more shocking than anyone imagined.

A killer brutally murders well-known community activist and member of the gay community Dennis Dolinger in the basement of his Washington, D.C., home.