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

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

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.

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.

In 2017, an Ohio couple finds a dismembered body in a basement freezer. It unlocks a harrowing mystery surrounding a missing woman and a tragic love triangle.

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.