Yinka struggles with whether to alert a target of the threat to their life; explores the reactions of common people to the horrifying discovery that they are the target of an anonymous person's death threat.
After Gordon Wardell makes an emotional appeal to find his wife's killers, the police soon realize they must look closer to home as they dig deeper into suspicions.
After his body was found in his Rothienorman cottage, handyman Brian McKandie's death in 2016 was initially deemed accidental, but a pathologist soon discovered severe injuries that pointed to murder.
When police find the body of Monica Massaro in her New Jersey home with multiple stab wounds, detectives soon find their investigation leading them to serial killer Adam Leroy Lane.
When Lanell Barsock is found dead in her home in Palmdale, California, evidence points to her boyfriend before investigating detectives start to focus on her best friend, Larene Austin.
Holidaymakers stumble across the headless remains of 67-year-old Deborah Chong from London; with access to family, investigators and forensic experts, the filmmaker unpicks the complex motives and circumstances.
With Jemma Mitchell arrested, police have a circumstantial case against their chief suspect in the case of Deborah Chong's murder; the filmmaker dives deep into the crime and examines how police used CCTV evidence to arrest Jemma Mitchell.
A group of friends are joined by something inhuman during a game of tag; a round of hide-and-seek is interrupted by the arrival of a whistling entity; a boy's excursion to his fort ends in a confrontation with a deadly foe.
For centuries, stories of Satan have come from all over the world, but today some people claim that he and his worshipers haunt the woods of Ohio and North Carolina.
A border patrol agent encounters the vengeful ghost of a murdered colleague; paranormal sleuths make contact with angry spirits while investigating the site of an old asylum with a horrific past.
John George Haigh dissolved his victims' bodies in acid and poured the sludge down the drain. Fred Dinenage investigates his gruesome murders in the 1940s London.
Fred Dinenage explores the crimes of Graham Frederick Young, who, after serving 15 years for poisoning his parents, laced an entire factory's tea with deadly thallium.
Fred Dinenage investigates the crimes of meticulous masked killer Donald Neilson, whose slaying of 17-year-old heiress Lesley Whittle in 1975 was one murder too many.
Retracing the story of Ruth Ellis, who shot her lover in 1955. The last woman hanged in the UK, many say her death led to the end of capital punishment.
When a car is caught running a red light, police find themselves chasing an armed criminal; A suspicious death leads to an investigator discovering a deadly plot to poison a man.
A stop-and-search leads to the arrest of a serial killer; a police officer's instinct ends in an armed standoff; a traffic crash uncovers a massive fraud.
A traffic crash leads to the conviction of a cold-blooded killer; a casino patron leads to a money-laundering scheme; a speeding motorcycle leads police to arrest a prolific burglar.