Part 1 recounts the disappearance of Shannon Matthews in February 2008. After several emotional appeals by her mother Karen for Sharon's safe return, the country looked on in disbelief when Karen confessed to a Police Officer that it was all an elaborate hoax. Part 2 of the show focuses on schoolgirl killer Stuart Hazell who appeared tearful and distraught following the disappearance of 12-year-old Tia Sharp in August 2012.

The disappearance of a young mother. Feeling under pressure, her husband invited a TV crew to clear his name, while experts analysed his statements for tell-tale signs of deception. Part 2 details the horrific story of The Philpotts. On 11 May 2012, the family's home in Allenton, Derby, was seriously damaged by fire at around 4am. Five children who had been asleep upstairs — all died at the scene, while their half-brother died in hospital three days later.

Levi Bellfield. Levi Bellfield denied his connection to a series of murders and rapes, but videotaped police interviews tell a different story. Experts spot the giveaway signs.

Experts analyse a man’s deception following the Manchester Arena terror attack. Police tapes expose a man who murdered his wife and hid her body in the freezer.

When arrested for historic sexual offences, TV weatherman Fred Talbot tried to hide the truth in police interviews. His repeated response of ‘no comment’ speaks volumes.

Harold Shipman was a much-loved doctor. Millions watched the GP speaking on TV discussing the benefits of care, not knowing he'd already killed dozens of patients.

Eight-year-old Jamie Lavis was on the bus Darren Vickers was driving before he disappeared. Vickers joined the hunt and spoke on TV – but was hiding an awful truth.

Shana Grice was murdered after being stalked by her ex-boyfriend, Michael Lane. He denied involvement, but experts examine police videos to determine the truth.

In a rage, Ben Butler killed his young daughter, Ellie, but along with his wife faked a 999 call and protested innocence. Experts analyse their interviews.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his secret mistress exposed his lies. Experts examine his behaviour.

Examining the shocking cases where perpetrators have tried to feign innocence, deceiving the police and the public on missing persons and murder crimes they committed.

In 1985, Jeremy Bamber shot his parents, his sister and her twin sons. He protested his innocence - what do his messages from prison reveal?

One man's claims about a VIP paedophile ring threatened to destroy the reputation of some of Britain's most powerful people. But, was he telling the truth?

Christopher Halliwell is known to have killed two young women. Experts analyse his police interviews to assess whether he is responsible for more unsolved disappearances.

A young father returns to England after his wife and baby daughter are found shot dead at their US home. What really happened? Experts analyse his behaviour.

Why was Aram Kurd the only person to survive an explosion at his supermarket that killed five people? Experts identify his deception in TV and police interviews.

Craig Savage claims he never intended to kill his estranged wife and her mother and that his gun had gone off by accident. His body language tells a different story.

It took three decades for Russell Bishop to be convicted of the murder of two young girls in a Brighton woodland, but was his guilt obvious all along?

Luke Harlow imprisoned a schoolgirl in his flat before Stephen Beadman raped and murdered her. Experts reveal how they gave away their guilt within moments.

After Charlotte Brown died in a speedboat accident, the vessel’s owner claimed he was innocent. Experts reveal the full extent of Jack Shepherd’s deception.

Convicted murderer John Cannan is the prime suspect in the disappearance of estate agent Suzy Lamplugh. Experts examine the crucial video evidence.

When Mark Galante told police his wife Jody was missing, they noticed his lack of concern. Experts analyze the actions that marked him out as a killer.

John Sharpe killed his wife and then claimed she had left him for another man. He made TV appeals for her return, but were the signs of his guilt clear to see?