About this programme
Geoffrey Wansell revisits how mother and son Penelope John and Barry Rogers drugged and murdered 84-year-old Betty Guy in Wales and were caught by a police recording.
Programme listing
UK Crime Files: Wicked Beyond Belief is next on True Crime at 21:00 on Sun 9 Aug 2026.
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Geoffrey Wansell revisits how mother and son Penelope John and Barry Rogers drugged and murdered 84-year-old Betty Guy in Wales and were caught by a police recording.