As the investigation turns into a murder inquiry, a burned-out luxury car in a quarry leads police to a critical mistake on the part of the perpetrator - and a unique breakthrough.

Producer, sound design and research: Meic Parry

Narration and story: Tim HinmanExecutive Producer: Steven RajamSound Mixing: Mike WoolleyOriginal Music: Mark RobertsPoetry: Rhys IorwerthAn Overcoat Media production for BBC Sounds