Synopsis by Hal Erickson
Dithery ZaSu Pitts is miscast as novelist Stuart Palmer's crime-solving schoolmarm Hildegarde Withers in The Plot Thickens. As usual, Hildegarde tries to figure out the connection between two ostensibly unrelated murders. The unifying factor turns out to be a priceless museum artifact, targeted for pilfering by a gang of international art thieves. James Gleason, a holdover from RKO Radio's previous Hildegarde Withers films with Edna May Oliver and Helen Broderick, is back as Hildegarde's friendly nemesis, Inspector Oscar Piper. The Plot Thickens was released in Great Britain as The Swinging Pearl Mystery.
killing, detective, investigation, investigator, murder, police, private-detective, robbery