Linda reluctantly returns to Las Vegas by train when her loser husband Lloyd Rollins (Vincent Price) insists on vacationing there. When the couple disembarks, fellow passenger Tom Hubler (Brad Dexter) hurriedly does as well. Upon checking into The Fabulous Hotel & Casino, Rollins requests a line of credit and Linda discovers that her husband is in some kind of financial trouble, possibly criminal as well, and suspects he is trying to raise money by gambling. The first night, Rollins insists she wears her necklace, appraised at $150,000, when they go out.