Sportswriter Steve Taggart volunteers to do a series of articles for the
Los Angeles Herald Examiner about a compulsive sports and casino gambler he calls "Mr. Green" who is, in fact, himself. His sports editor enthusiastically assigns him the gambling series, which soon attracts a large readership. Over time, Taggart becomes more obsessed with gambling in
Las Vegas, which lands him even more deeply in debt. He compounds his money and gambling problems by dealing with loan sharks, including the mean and dangerous
Los Angeles bookmaker "The Dutchman". Taggart soon learns that even a Los Angeles pro football quarterback, whose football team he covers, is also on the Dutchman's payroll, as a means of cutting his own sports gambling debts. Taggart goes to Las Vegas for a field report on his gambling series; he meets a newspaper publisher who helps him make more gambling industry contacts. Through the
MGM Grand casino executive, Frank Sweeney, Taggart meets a sexy casino cocktail hostess named Flo. Flo is sent to Taggart's hotel room for a night, but Taggart, loving the gaming tables, goes gambling at the
Dunes Hotel casino with Flo as his 'lucky charm'. Taggart wins at roulette. Taggart, as part of his ongoing news story, he also checks out assorted Las Vegas bookmakers, including Downtown Leroy's. Taggart meets various Vegas gambling and business figures, including famed
Las Vegas Sun publisher
Hank Greenspun, for more insights into the Las Vegas gambling world. He is unaware that the Dutchman's enforcer, "Panama Hat", is following him. "The Hat" orders Taggart to return to Los Angeles immediately and settle up with the Dutchman. Taggart's addiction and gambling losses ultimately spill over into his personal life. After a day trip to
Knott's Berry Farm, Taggart brings his young daughter Amy to
Hollywood Park; at the track press box, they chat with his colleagues, including
Jim Murray and
Allan Malamud. Taggart, trying to stem his gambling while at the racetrack, is physically assaulted by a track-goer to whom he owes money. The next day, his editor says he loves the "Mr. Green" series and advances Taggart $10,000 for "Mr. Green" to use for more gambling. Upon more reflection on how truly dangerous sports gambling can be, Taggart visits
Gamblers Anonymous to end his gambling compulsion. He still returns to Las Vegas, where he becomes increasingly acquainted with high-roller Charley Peru, in hopes of making a large score and breaking even. He also hopes Peru can help him get Panama Hat off his back. After attending the Gambler's Anonymous meeting, Taggart soon decides to stop gambling "forever". Before returning to Los Angeles, to celebrate "kicking" his gambling habit, Taggart places a few dollars into a slot machine at the
Las Vegas Airport, where he scores a huge jackpot. This unexpected win provides the incentive for Taggart to retry his luck at the gaming tables, furthering his lucky streak and eventually winning back the money he needs to pay his debts. Taggart immediately gets an attorney to hold a portion of the huge cash score in a trust fund for his daughter. When he asks the attorney to reassure him that "even I cannot touch the money?", his attorney firmly replies, "especially, not you." ==Cast==