The Penguin Pool Murder

Gwen Parker (Mae Clarke) meets her former boyfriend Philip Seymour (Donald Cook) at the local aquarium, and asks him for some money so she can leave her husband, stockbroker Gerald Parker (Guy Usher); but Mr. Parker receives an anonymous telephone call tipping him off to the rendezvous. When he confronts the pair, Seymour knocks him out with a punch. As no witnesses see the altercation, he hides the unconscious man in the room behind an exhibit.

Schoolteacher Hildegarde Withers (Edna May Oliver) takes her class on a field trip to the aquarium. She helps stop a pickpocket, "Chicago" Lew (Joe Hermano), by tripping him with her umbrella, but he slips away. Soon afterward, she loses her hatpin; one of her students finds it. Then she sees Parker's now-dead body falling into a pool housing a penguin.

Police Inspector Oscar Piper (James Gleason) arrives and uncovers several suspects: the widow and Seymour; Bertrand Hemingway (Clarence Wilson), the head of the aquarium, who had financial dealings with the deceased; and Chicago Lew, found hiding near the scene. Lawyer Barry Costello (Robert Armstrong), a bystander, catches Gwen Parker when she faints, and acquires a client when she is taken in for questioning. He also becomes Seymour's lawyer.

Miss Withers makes herself useful to Piper by taking notes on his interviews and her observations, typing them up for him, calling attention to points he has missed, and making him a meal. He is appreciative enough to not object when she continues to insert herself into his investigation. However, she herself later becomes a suspect when it is determined that her hatpin was driven through the man's right ear into his brain.

Seymour confesses to protect Mrs. Parker, but Miss Withers does not believe him. She convinces Piper to notify the press that the murder was committed with a thrust through the left ear.

Later, Costello passes along a message from Chicago Lew, in which he claims to know the identity of the killer. When Piper and Miss Withers go to see him at the jail, though, they find him dead from hanging. Costello demonstrates a way in which Seymour could have escaped from his nearby cell using a duplicate key (which is found), strangled Lew, and hanged him with wire without entering Lew's cell.

At the murder trial of Philip Seymour and Gwen Parker, Costello questions Miss Withers, but slips up, showing that he knew that Gerald Parker was killed via the right ear. He phoned the tip to Seymour and killed him because he is Gwen's lover and wanted her to himself.

When Gwen Parker is released, the waiting Seymour slaps her in the face, to the amusement of Piper and Miss Withers. Piper then unexpectedly asks Miss Withers to marry him. She accepts. (In the sequel, Murder on the Blackboard, they are still single.)

Cast notes

• Oliver reprised her role in two sequels, Murder on the Blackboard (1934) and Murder on a Honeymoon (1935)
• Gleason played the role of Piper in all six films in the series.[1]

The film received mixed reviews in 1932. In his assessment of the production on December 27, Mordaunt Hall of The New York Times describes it as "a series of hilarious doings in which Miss Oliver has a jolly time."[2] Hall, though, contends that the film's frequent "levity" fails to be counterbalanced by an engaging or even moderately challenging mystery:

"The Penguin Pool Murder"...is a humorous murder story which stirs up quite a good deal of interest, but scarcely comes up to expectations in its dénouement. However, it is one of those comicalities that possesses a good share of fun and therefore the murder mystery is, to the audience, not of great consequence.[2]

• The Penguin Pool Murder at the American Film Institute Catalog
• The Penguin Pool Murder at AllMovie
• The Penguin Pool Murder at IMDb
• The Penguin Pool Murder at the TCM Movie Database