Singer Steve, friend Seymour and fiance Jane, along with her dizzy blonde room mate Irma, have a series of misadventures on a California-bound train and end up involved with a gang of murderous gangsters in Las Vegas.
Marie Wilson
as Irma Peterson
Diana Lynn
as Jane Stacy
Dean Martin
as Steve Laird
Jerry Lewis
as Seymour
John Lund
as Al
Corinne Calvet
as Yvonne Yvonne
Lloyd Corrigan
as Sharpie Corrigan
Don Porter
as Mr. Brent
Harold Huber
as Pete
Joseph Vitale
as Slim
Charles Evans
as C.Y. Sanford
Kenneth Tobey
as Pilot
