The city of Pompeii uniquely captures the public’s imagination – in AD79 a legendary volcanic disaster left its citizens preserved in ashes to this very day. No-one, however, has been able to unravel the full story that is at the heart of our fascination – how did those bodies become frozen in time? For the first time, the BBC has been granted unique access to these strange, ghost-like body casts that populate the ruins and, using the latest forensic technology, the chance to peer beneath the surface of the plaster to rebuild the faces of two of the people who were killed in this tragedy.