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.

When a vulnerable young woman disappears from a remote Scottish village, a 16-year-old story of abuse, fraud and murder emerges. Experts reveal the hidden clues.

A man tries to fool a TV show into awarding him money. Three years later, he kills his partner then calmly lays a trail of false leads. Experts uncover the truth.

Alice Ruggles meets soldier Trimaan Dhillon on Facebook. Experts analyse Dhillon's terrifying behaviour after Alice is found dead.

Emile Cilliers attempted to murder his wife, Victoria, by sabotaging her parachute on a 4,000ft skydive. Experts examine Emile's chilling police interview.