03:15PetrellaSeries 1Episode 1: Good Fences Make Good NeighboursBBC Radio 4 Extra Duration: 45 minutes Sun 9th Dec 2012, 03:15 on BBC Radio 4 ExtraThe Oxbridge detective probes the murder of a young woman who led 'a double life'. Michael Gilbert's thriller stars Philip Jackson.GenresDramaCrimeBrandPetrellaSeriesPetrella: Series 1 Source: BBC Online