After her mother's passing, Joanna lives a life wandering visiting casinos with her gambler father. Joanna's kindness will not allow her to abandon her father, who has her dress as a prostitute at the casinos to distract his opponents and turn the game in his favor. One day, her father participates in a private game hosted by the Greek millionaire Vassos, but a crushing defeat burdens him with an enormous debt... Then, the millionaire cruelly tells him with a smile: "I willoffers him one escape-he'll forget forgive the debt if you her father gives Joanna to me himthe woman."