A new BBC docuseries is no doubt set to be the new TV obsession for fans of true crime.
Catching Britain's Killers: The Crimes That Changed Us will look at the stories of three murder cases that changed the way investigations are conducted today.
Starting on Monday 7 October, the gritty series will see how laws, police questions and forensic works were transformed following the landmark cases.
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Episode one will look at the murders of 15-year-olds Lynda Mann and Dawn Ashworth. They were both attacked and killed in similar circumstances in the 1980s.
Both from different areas of Leicestershire, the teenagers were raped and strangled on separate occasions, one in 1983 and the other in 1985. Their bodies were discovered three years apart in the same parkland.
The hour long programme will see police using DNA fingerprinting to hunt down their killer, Colin Pitchfork. It led to the creation of the DNA database in the UK - which was a world first.
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Not only will it look into the database, it will also delve into the development of DNA fingerprinting as an investigative tool. This new process would eventually lead to convictions for crimes that had gone unsolved for years - and without it, would never have been explained.
The BBC said that the other two episodes look at other important cases.
Speaking of the show, the broadcaster said: "It meets the mother whose fight for justice after the murder of her daughter led her to take on the legal establishment and challenge an 800-year-old law.
"And it reveals how a shocking miscarriage of justice in the 1970s exposed the dark secrets of police interrogation, leading to a radical overhaul of police powers and a brand new method of investigation."
It will weave together interviews with police officers, local journalists, forensic scientists as well as friends and close relatives of the victims, to give viewers an in-depth insight into how some of the country's most harrowing crimes were solved.
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Docuseries such as this, and true crime dramas are often helpful in solving more murders, just by airing them.
A Confession, which is on ITV, has opened four more cases into murders which could be linked to Christopher Halliwell although it's only been on for three weeks. It looks into the murders of Sian O'Callaghan and Becky Godden but he's believed to have committed many more.
Catching Britain's Killers: The Crimes That Changed Us is on BBC Two on Monday 7 October.
Featured Image Credit: BBCTopics: TV and Film