When Edna May Oliver decided to leave RKO Radio's "Hildegarde Withers" series, the studio came up with an unorthodox replacement in the form of the dry-witted Helen Broderick. Murder on a Bridle Path turned out to be Broderick's only appearance in the series, after which she was succeeded by ZaSu Pitts. The plot begins to thicken when flirtatious society bride Violet (Sheila Terry) is killed early one morn while riding her horse in New York's Central Park. Investigating the case is Inspector Piper (James Gleason), who once more is flustered by the well-intentioned interference of crime-solving schoolmarm Hildegarde Withers. The clues this time include a sinister ex-husband, a broken bicycle, and a phony prison pardon. As always, Hildegarde arrives at the solution before Piper does -- and, as always, nearly loses her own life in the process.
by Hal Erickson synopsis