A pair of beach bums wind up in Acapulco, where they get involved in a search for a beautiful woman and a sunken treasure.

Ray Milland
as Evelyn Rose

Suzanne Pleshette
as Anna

Dack Rambo
as Riley Briggs

Roger Davis
as Marcus McAllister

Melissa Newman
as Julie

Jorge Luke
as Tomas

Pedro Armendáriz Jr.
as Angel

José Chávez
as Rodrigo

Eduardo López Rojas
as Señor Cepeda

Teddy Stauffer
as Jay Marston