When human remains are found in a Florida forest, detectives across the US search for answers. With only a tattoo on the victim, how can they solve the mystery?

A massage therapist from Virginia Beach disappears before work. Weeks later, a cyclist makes a discovery that will rock the town and change lives forever.

Deputies discover a young man shot dead in a trailer park miles away from home. As they try to solve the mystery, several witnesses point at different suspects.

In Lansing, Michigan, at a mobile home park police search for the person who killed Delayno Hudson and shot two other men after a car crash.

A 26-year-old is found dead inside her home and it is declared a suicide, but a determined investigator looks further when friends of the victim come forward.

When attorney James DiMartino is shot in the head in broad daylight, the suspects range from his lover, to his wife, to his business partner.

When two women die suddenly under mysterious circumstances, authorities initially suspect suicide. However, both of their families believe it was murder.

A 22-year-old National Guard officer with a bright future drowns in water only a few inches deep. Later, a 13-year-old cheerleader disappears.

In 2009, a woman disappears and writes a social media message to say she is leaving. But, her friends and family are sceptical she would leave her children.

Pregnant Tiffinie Adams' body is found in a field and it catches the attention of the small town. Police use her social media to reveal the murderer.

A month after 17-year-old Kara goes missing, Kelsey is abducted in a car park. When a body is discovered by a lake, two families are locked in a grim waiting game.

Niqui goes missing three weeks before her wedding day. Suspicion falls on her fiancé, until her case is linked with the unsolved murder of another young woman.

When a tip from a missing persons' network helps identify the body of a John Doe murder victim, investigators' questioning unravels a dark tale of betrayal.

In North Port, Florida, police get a call that a young mother has vanished from her home. A trail of incoming 911 calls leads officers on a hunt for her abductor.

When two teenage girls discover they are dating the same boy, they go to war with each other on social media and in real life, with tragic consequences.

A shooting in a luxury building sends shockwaves through an upscale neighbourhood. Detectives uncover a list of suspects and a plot born out of economic envy.

What seems a simple accident becomes a murder case when 32-year old Mike Mueller's car is found across state lines. Will the car offer police the crucial clue?

The Arlington murder of Sharyn Kills Back remained a mystery for more than 20 years. Then, a surprise tip to Fort Worth Police promises to crack the cold case.

Steve and Amy investigate claims from a family of six that they are being haunted by paranormal activity. What will they uncover in Mahwah, New Jersey?

Jack returns from LA to his childhood home in the UK. Can he unlock the secrets of terrifying, un-explained experiences he had there as a boy?

Jack continues his paranormal tour of Buckinghamshire, UK, with a visit to a local theatre and an ancient pub - both rife with ghost sightings.

Jack hunts for ghosts at Missenden Abbey, the scene of regular school trips in his childhood and a hotbed of demonic activity. What will he encounter?

The team investigates hauntings that surround Savannah's "Hanging Square." This square has been the epicentre of Savannah's paranormal activity for over 300 years.

Jack returns from LA to his childhood home in the UK. Can he unlock the secrets of terrifying, un-explained experiences he had there as a boy?