简介：　　Basedonafamousstageplayandsetintheyear1912,anuppercrustEnglishfamilydinnerisinterruptedbyapoliceinspectorwhobringsnewsthatagirlknowntoeveryonepresenthasdiedinsuspiciouscircumstances.Itseemsthatanyorallofthemcouldhavehadahandinherdeath.ButwhoisthemysteriousInspectorandwhatcanhewantofthembbb?