Millionaire sportsman Hiram Brighton hires gumshoe Michael Shayne to keep his spoiled daughter Phyllis away from racetrack betting windows and roulette wheels. After Phyllis slips away and continues her compulsive gambling, Shayne fakes the murder of her gambler boyfriend, who is also romancing the daughter of casino owner Benny Gordon, in order to frighten her. When the tout really ends up murdered, Shayne and Phyllis' Aunt Olivia, an avid reader of murder mysteries, both try to find the identity of the killer.

Directed by: Eugene Forde
Written by: Stanley Rauh & Manning O'Connor
Runtime: 77 minutes
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Cast:
Lloyd Nolan Lloyd Nolan
Michael Shayne 
Jimmy Aubrey Jimmy Aubrey
Mac 
Don Brodie Don Brodie
Reporter (uncredited) 
Douglass Dumbrille Douglass Dumbrille
Benny Gordon (as Douglas Dumbrille) 
Ralph Dunn Ralph Dunn
First Bartender 
Bess Flowers Bess Flowers
Racetrack Spectator in Sunglasses (uncredited)