There is a wail of “please no!” along with screams in the first minute of this documentary . This is not the raw emotion of a convicted killer, but her mother Susan. Watching on, it feels like Susan's heart is breaking and perhaps in these moments, her worst fears are realised as her beloved daughter is taken into police custody, before eventually ending up in jail. Why Cheshire Police released this arrest footage only they know. And why they allowed all of the audio to be included by Netflix ,