ITV’s new drama Until I Kill You tells the true story of nurse Delia Balmer’s shocking ordeal of realising her boyfriend of three years was a serial killer.
Until I Kill You begins on 3 November on ITV1.
From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing.
When their relationship began, Sweeney called Balmer regularly; he would gift her flowers and shower her with affection.