David Boothe, Robert Preston is a Chicago reporter on assignment at Boulder Dam, and he and his wife stay at a hotel in Las Vegas. There the casino's owner, Corrigan, Stephen McNally, introduces Joan Phillips Boothe, Barbara Stanwyck, to gambling with a few chips on the house. The lure of bright lights and easy money pulls at her, and what begins as casual gambling soon becomes a consuming habit. Joan loses $600 of David's expense money, pawns a camera, and then wins it back, setting off a dangerous thrill ride that both fascinates and terrifies her.
When Ruth Phillips, Edith Barrett, joins them in Nevada, the family dynamic grows more complex. Ruth is described as divisive, manipulative, and neurotic, a destabilizing force who adds pressure to an already fragile situation. Corrigan flirts with Joan and persuades her to serve as his proxy in a high-stakes poker game. Joan wins $4,000 and is granted a share, but the game lasts until dawn. David phones from the road, and Ruth tells him that Joan has not slept in her bed all night, a detail that hardens his resolve to understand what gambling is doing to their marriage. He returns to Vegas with a clear sense that the gambling world has taken a firm hold on Joan.
The strain pushes David to quit his job and take Joan to Mexico, where he plans to write a book about their experiences and try to reclaim a sense of normalcy. A couple Joan met in Vegas draws her into a dice game, and she loses the life savings of that pair, a blow that deepens the rift between them. David leaves, intent on filing for divorce, signaling a possible end to their marriage.
Joan returns to Vegas, where Corrigan hires her to front a horse-racing operation. She double-crosses his partners to cash in on a long-shot bet, showing both grit and a willingness to gamble with others’ futures. On her own again, she sinks deeper into a world of disreputable characters, partnering in Shreveport with a crooked gambler named Frenchy, a move that reveals how far she has drifted from the life they once hoped to lead.
By the time David reappears after her beating, Joan is hospitalized and contemplating suicide. He must confront the heartbreak of seeing the person he loves most struggle against an unyielding addiction, and he fights to convince her that it’s not too late to quit gambling and fight for their marriage. The story traces the seductive pull of casinos, the fragility of trust, and the long road back from crisis to reconciliation, painted in a restrained, human tone that keeps the focus on character and consequence.
