A schoolteacher and amateur sleuth suspects foul play when a fellow passenger on a seaplane gets sick and dies. The third and final film with Edna May Oliver and James Gleason as the astute schoolteacher Hildegarde Withers and the New York Police Inspector Oscar Piper busy solving crimes.

Directed by: Lloyd Corrigan
Written by: Robert Benchley & Seton I. Miller
Runtime: 74 minutes
Tagline: Shiver and shake while you giggle and quake!
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Cast:
Edna May Oliver Edna May Oliver
Hildegarde Withers 
James Gleason James Gleason
Inspector Oscar Piper 
Lola Lane Lola Lane
Phyllis La Font 
George Meeker George Meeker
Tom Kelsey, alias Roswell T. Forrest 
Dorothy Libaire Dorothy Libaire
Kay Deving 
Harry Ellerbe Harry Ellerbe
Marvin Deving