 Wealthy Lloyd Rollins visits Las Vegas for some high stakes gambling, ostensibly recreational, with his wife Linda, formerly a lounge singer there. Lloyd s real object soon becomes evident; interested onlookers include Tom Hubler, apparently an insurance investigator...and Dave Andrews, Linda s old flame (now a police lieutenant). Lloyd fails to win the money he needs, and Andrews finds a real case on his hands when a casino owner is murdered...with a wide array of suspects. Climax is an exciting car and helicopter chase.