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 2001, a welfare check reveals a woman brutally murdered in the basement of her home. The hunt for her killer leads to a mystery buried for over 14 years.

In 1999, a killer brutally murders Dennis Dolinger in the basement of his home. With DNA technology, the race is on to find the culprit before they strike again.

In 1978, a shocking murder terrifies a small Illinois town. It goes unsolved for years, until investigators lay a cunning trap to catch the killer.

When 32-year-old Adam Chase disappears in Ontario County, NY, it takes the tireless efforts of a private investigator to reveal the truth - and Adam's tragic fate.

A man vanishes from a small Idaho town, leaving a trail of strange clues and rumours. When his body is found, the truth is more shocking than anyone imagined.

Philadelphia police officers find four adults locked in a basement dungeon. The investigation leads across four states, resulting in multiple arrests.

Police unlock a missing Michigan man's cell phone to discover clues to his whereabouts and find him hanging in a basement dungeon.

A routine traffic stop leads to a deadly discovery in a suburban home in Massachusetts, and officers realise they've apprehended a serial killer.

When 31-year-old Ashley Young doesn't call her mum for days, her family and friends fear the worst. A 911 call triggers a gruesome basement discovery.

A body found in a California basement opens a decades-old mystery. As police investigate, they learn it belongs to a teenager missing since 1984.

When friends find Brad McGarry shot dead in the basement of his Ohio home, evidence suggests a robbery but soon a more complicated motive emerges.

In rural Pennsylvania, a home refurb reveals a skeleton in the basement. Police uncover a decades-old missing persons case and a grisly family secret.

In 2021, a strange visitor leads to police to a Norman, Oklahoma, basement, where they unwrap the gruesome contents of a suspicious box.