Quyen was lured to the house of her business associate Stephen who, with his friend John, had set a trap. Once inside the house, she was beaten, sexually assaulted and set alight.

Documentary examining the killing of 23-year-old Molly McLaren by her ex-boyfriend Joshua Stimpson, who stabbed her 75 times in broad daylight in June 2017.

Knives are now the most common method of homicide, yet only one-fifth of offenders are actually charged. The families of six victims of knife crime share personal testimonies.