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The Plot Thickens
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The Plot Thickens is a 1936 American mystery film directed by Ben Holmes starring James Gleason, ZaSu Pitts, Owen Davis, Jr., and Louise Latimer. Pitts plays the schoolteacher and amateur sleuth Hildegarde Withers from Stuart Palmer's 1932 novella The Riddle of the Dangling Pearl. Gleason reprised his role as Hildegarde's friendly nemesis, Inspector Oscar Piper, from RKO Radio Pictures' previous Hildegarde Withers films.