Shady stockbroker and abusive husband Gerald Parker is found dead in the penguin pool of a NYC aquarium after being knocked cold by his wife's boyfriend.
Plot keywords (from IMDb): african american student, alibi, amateur detective, amateur sleuth, aquarium, artificial respiration, based on novel, battery park, bird in title, bitch slap, blackmail, breakfast, cigar smoking, class trip, clue, confession, confession of crime, corpse, crab, criminal, cross examining a witness, dead body, deaf mute, death, derby, detective, detective series, dumb cop, face slap, false accusation, fight, first of series, fox fur, hat band, hatpin, hildegarde withers, homicide, infidelity, inspector, interrogation, irish cop, jail, jewish american, judge, lawyer, male female relationship, man slaps a woman, manhattan new york city, marital infidelity, marital jealousy, marriage proposal, men's bathroom, motive, murder, murder confession, murder investigation, murder trial, octopus, penguin, penguin pool, pickpocket, pipe, police inspector, purse snatcher, red herring, schoolteacher, scream, screaming, seal the animal, secret, shark, shaved head, snoop, snooping, solving a crime, spousal abuse, stock broker, stockbroker, student, telephone book, whodunit, wisecrack humor, female detective
Penguin Pool Murder (1932) 