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The Plot Thickens
Directed by	Ben Holmes
Screenplay by	Jack Townley Clarence Upson Young
Based on	The Riddle of the Dangling Pearl 1932 story by Stuart Palmer
Produced by	Samuel J. Briskin William Sistrom
Starring	James Gleason ZaSu Pitts Owen Davis, Jr.
Cinematography	Nicholas Musuraca
Edited by	John Lockert
Production company	RKO Radio Pictures
Distributed by	RKO Radio Pictures
Release date	December 11, 1936 (1936-12-11)
Running time	69 minutes
Country	United States
Language	English

The Plot Thickens is a 1936 American mystery film directed by Ben Holmes starring James Gleason, ZaSu Pitts and Louise Latimer.^[1] Pitts plays the schoolteacher and amateur sleuth Hildegarde Withers from Stuart Palmer's stories. Gleason reprised his role as Hildegarde's friendly nemesis, Inspector Oscar Piper, from RKO Radio Pictures' previous Hildegarde Withers films.

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Hildegarde Withers is a novelist who now tries to figure out the connection between two unrelated murders. Inspector Oscar Piper, is Hildegarde's friendly nemesis.

• James Gleason as Oscar Piper
• ZaSu Pitts as Hildegarde Withers
• Owen Davis, Jr. as Robert 'Bob' Wilkins
• Louise Latimer as Alice Stevens
• Arthur Aylesworth as Kendall, the Butler
• Paul Fix as Joe, the Chauffeur
• Richard Tucker as John Carter
• Barbara Barondess as Marie, the Maid
• James Donlan as Jim, a Detective
• Agnes Anderson as Dagmar, the Sculptor
• Oscar Apfel as H. G. Robbins
• John T. Bambury as Midget (uncredited)

• The Plot Thickens at IMDb
• The Plot Thickens at the TCM Movie Database
• The Plot Thickens at the AFI Catalog of Feature Films

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