New York schoolmarm Hildegarde Withers assists a detective when a body of unscrupulous stockbroker Gerald Parker suddenly appears in the penguin tank at the aquarium.
| Writing | Stuart Palmer | Novel |
| Directing | George Archainbaud | Director |
| Writing | Lowell Brentano | Story |
| Writing | Willis Goldbeck | Screenplay |
| Camera | Willard Barth | Assistant Camera |
| Sound | Hugh McDowell Jr. | Sound Recordist |
| Visual Effects | Harry Redmond Sr. | Special Effects Supervisor |
| Directing | Robert Margolis | Assistant Director |
| Camera | Henry W. Gerrard | Director of Photography |
| Camera | Russell Metty | Camera Operator |
| Production | David O. Selznick | Executive Producer |
| Directing | Ray Lissner | Assistant Director |
| Production | Kenneth Macgowan | Associate Producer |
| Editing | Jack Kitchin | Editor |
| Crew | Chuck Hamilton | Stunts |
| Production | Fred Schuessler | Casting |
| Production | Dick Stockton | Casting Assistant |
| Sound | Max Steiner | Music Director |
