14:3015 Minute DramaNicola Upson - An Expert in MurderEpisode 8BBC Radio 4 Duration: 15 minutes Wed 29th Nov 2017, 14:30 on BBC Radio 4 ExtraMurder mystery set in 1934. Elspeth's adoptive mother Alice Simmons arrives in London and provides Penrose with a vital link between the past and the present. From April 2008.GenresDramaDramaCrimeFormatsAudiobooksBrand15 Minute DramaSeries15 Minute Drama: Nicola Upson - An Expert in Murder Source: BBC Online