When Clair is found murdered, her phone reveals a secret relationship… and a suspect.

A young man on his way home from work is doused in petrol and set alight. At first the police believe it was an unprovoked attack, but then a different picture emerges.

A couple escape from a burning car tumbling down a hill, but suffer life-threatening burns. Detectives discover the occupants were victims of a murder plot inspired by a movie.

A decapitated woman found in an up-market seaside resort sparks panic. But then police discover this is no local crime – a search of CCTV footage reveals the murder took place 200 miles away, and the body was transported there in a suitcase in broad daylight.

The body of a decapitated woman found in a seaside resort sparks panic. CCTV footage reveals the murder took place 200 miles away and the body was transported there in a suitcase..

The murder of Stephen Whitehead, who was found bludgeoned to death at work, leading police to suspect a burglary had gone wrong. But was the killer in fact a colleague harbouring a deadly grudge?

The killing of 18-year-old father Jon-Jo Highton, who was ambushed by a gang and murdered after a night out. There were multiple suspects - but which one committed the crime?

Keith Philpott was a much-liked member of his community, but became the victim of a gruesome murder. Detectives uncovered a revenge plot built on lies.