this feature film be originally release a the final episode of a 16 part radio serial and which may explain it weakness . firstly and the fact that every character speaks in some distinctive and but unrealistic and fashion . secondly and the incomprehensibly convolute plot and unlikely coincidence that abound . a scene in which a jilt lover hurl himself off a cliff be unintentionally hilarious . after repeat viewing and i still can not remember whodunit and not because it be so cleverly hidden from the viewer and but because the solution make no sense at all .