Gambler and fight promoter Jim Lambert, grants Gunner O'Brien his dying wish and agrees to care for Gunner's granddaughter, Mona, believing her to be a child. Mona turns out to be a beautiful young woman, however, and Jim overnight stops drinking and chasing skirts, becoming a devoted family man. Killer Gordon, one of Jim's fighters, becomes friendly with Mona, and Jim, believing that she loves Killer in return, himself turns for consolation to his former mistress, Yvonne, whom he asks to marry him.
Lew Cody
Jim Lambert
Aileen Pringle
Yvonne
Sue Carol
Mona
Hugh Trevor
Killer Gordon
Heinie Conklin
Dijuha
Kit Guard
Prof. Griswold
Jack Herrick
Dr. Monahan
James J. Jeffries
Gunner O'Brien
