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Reporter David Boothe (Robert Preston) is in Las Vegas covering a story. His wife, Joan (Barbara Stanwyck), looking for a story of her own, snoops around their hotel's casino with a concealed camera. The casino owner, Horace Corrigan (Stephen McNally), catches her, but, seeing that she is not a hustler, decides to provide her with some free chips so she can sample the casino's various games. She accepts, only to find gambling so engrossing that it might consume and destroy her life. Wikipedia