The Penguin Pool MurderBBC Two Duration: 1 hour, 5 minutesFirst broadcast: Sun 27th Oct 2013, 06:00 on BBC Two HDLatest broadcast: Sun 27th Oct 2013, 06:00 on BBC Two EnglandA schoolteacher sleuth helps a policeman solve a grisly murder at an aquarium.ContributorsHildegarde Withers:Edna May OliverInspector Oscar Piper:James GleasonGwen Parker:Mae ClarkeBarry Costello:Robert ArmstrongWriter:Willis GoldbeckProducer:David O SelznickDirector:George ArchainbaudGenresDramaDramaThrillerFormatsFilms Source: BBC Online