The Plot Thickens (1936)
A priceless Cellini silver cup is stolen from a local museum with both Hildegarde and Oscar on the case.
- Country : United States of America
- Genre : Mystery, Comedy
- Studio : RKO Radio Pictures
- Director : Ben Holmes
- Cast : James Gleason, Zasu Pitts, Owen Davis Jr., Louise Latimer, Arthur Aylesworth, Paul Fix