A new documentary will tell the tragic story of the murder of backpacker Grace Millane.

The Murder of Grace Millane: Social Media Murders will air on ITV 2 on Monday.

The new true-crime series focuses on a real crime that resulted in the death of a young person and looks at how social media played a role in bringing together the culprit and the victim.

Miss Millane was strangled to death in a hotel room in Auckland, New Zealand in December 2018, the day before her 22nd birthday.

She had met her killer Jesse Kempson on the dating app Tinder before they shared some drinks at a few bars.

She died in the man's apartment in the CityLife Hotel.

Read more >> Man who murdered backpacker Grace Millane handed life in jail

During the couple's date, CCTV showed the pair appeared to be enjoying each other's company as they returned to his small downtown Auckland apartment.

The university graduate would never leave the room alive - her body later found dumped in a shallow grave in the Waitākere Ranges.

In February last year, Kempson was jailed for at least 17 years her murder after being convicted by a jury.

 

Victim - The family of Grace Millane have welcomed her killers appeal being quashed

Victim - The family of Grace Millane have welcomed her killer's appeal being quashed

 

The documentary has been made by Firecracker Films and is one of three which will air next week.

The episode description said: "Raising questions around women’s safety, this film documents the night of Grace’s disappearance, the subsequent search for her, the arrest of Jesse, the court case that followed and ultimately the role that a dating app played in bringing these two individuals together.

"Exclusive interviews with the investigators closest to the case combined with both revealing police interview footage with the culprit Kempson and CCTV footage tell the story of a truly chilling case that sparked worldwide media attention.

"Other individuals also speak for the first time including Grace’s friends, a fellow traveller and former flat-mate of Kempson as she recounts her own experience of knowing the cold-blooded killer and the suspicions she had of him prior to this event.

"Kempson’s ‘rough sex defence’ otherwise known as the ‘50 shades of grey defence’ is also explored during this documentary, and how this case in particular inspired a change in British law."

The Murder of Grace Millane: Social Media Murders airs at 9pm on Monday on ITV 2.