The case of Charlotte Pinkey, a woman who disappeared in Ilfracombe after going to a party and never returning.

The case of Robert Henry Davies, who committed murder after a sexual assault investigation threatened to revisit sins from his past.

The case of John Bodkin Adams, a trusted GP who befriended older patients and was often named in their wills after their deaths.

Dismembered bodies of two women are both found in car boots, the first at a train station, the second in a city.

When Linda Anders is found dead at home, her wheelchair-bound husband Malcolm claims an intruder broke in. Police findings quickly change the course of the investigation.

The murder of a part-time actress triggers a nationwide manhunt for a killer.

Investigating the murders of two elderly women, a decade apart.

When Pierre LeGris reports his wife Rui Li missing, police are instantly wary, and they uncover a tangled web of loyalty and deception.

The case of John George Haigh, who came up with a plan for the 'perfect' murder when he was serving time in prison for fraud.

After a fire breaks out at a home, police receive a strange phone call that triggers a hunt for a killer.